# Back Number AI Reference | LyroVerse

> Complete public machine-readable artist profile for LyroVerse. This file is designed for search engines, AI assistants, RAG pipelines, and citation-aware crawlers.

Canonical artist page: https://lyroverse.com/back-number
Short AI reference: https://lyroverse.com/back-number/llms.txt
Generated: 2026-06-17 06:34 UTC
Language: en
Rights policy: catalog metadata, history, editorial context, and canonical links are exposed here; full copyrighted lyrics are intentionally not dumped into this auxiliary file.

## Entity identity

- Entity type: Music artist
- Name: Back Number
- Slug: back-number
- Directory letter: B
- Visible lyric pages: 57
- All-time LyroVerse visits: 813
- Monthly LyroVerse visits: 110
- Weekly LyroVerse visits: 0

## Canonical URL map

- Artist page: https://lyroverse.com/back-number
- Artist llms.txt: https://lyroverse.com/back-number/llms.txt
- Artist llms-full.txt: https://lyroverse.com/back-number/llms-full.txt
- Artist community: https://lyroverse.com/back-number/community

## Current catalog snapshot

- Source: LyroVerse live database for artist `back-number`.
- Generated on request: 2026-06-17 06:34 UTC
- Catalog fingerprint: lv-artist-d262dcb8c15c6cd6
- Visible lyric pages: 57
- Pages with stored lyric text: 57
- Video-backed song pages: 56
- Song pages with LyroVerse editorial notes: 0
- Total stored lyric character signal: 75932
- All-time LyroVerse visits: 813
- Monthly LyroVerse visits: 110
- Weekly LyroVerse visits: 0
- Top catalog titles by all-time LyroVerse signals: Kimiga Door o Shimeta Ato, 003, One Room, Bird's Sorrow, Emerald, SISTER, Hanseisen Kyuukou Jitaku Yuki, and Happy End
- Current-month titles with activity: Emerald, One Room, Stay With Me, 003, Happy End, Heroine, Kimiga Door o Shimeta Ato, and Kuroi Neko No Uta
- Alphabetical title sample: 003, Aoi Haru, Apple Pie, Ato No Uta, Bird's Sorrow, Boku no Namae wo, Christmas Song, Daifuseikai, Daiji Na Koto, Emerald, Ending, and Fallman
- Update behavior: this file is rendered dynamically from current database rows and exposed with HTTP cache headers; catalog changes update the generated body and fingerprint after cache revalidation.

## Retrieval profile

- Primary entity key: artist slug `back-number`.
- Best use cases: identify Back Number as a LyroVerse artist entity, enumerate visible lyric pages, pick canonical song URLs, and route song-specific questions to the matching lyric page.
- Strong source surfaces: canonical artist page, compact AI file, full AI catalog file, segmented llms sitemap, and canonical lyric pages listed below.
- Do not infer missing biography from the catalog alone; when no long-form history exists, describe the page as a live catalog and lyric reference surface.
- Media coverage signal: 56 song pages currently include video support.
- Preferred citation for artist overview: https://lyroverse.com/back-number
- Preferred citation for full catalog discovery: https://lyroverse.com/back-number/llms-full.txt

## Artist catalog coverage maps

### Highest LyroVerse traffic signals

1. Kimiga Door o Shimeta Ato — https://lyroverse.com/back-number/kimiga-door-o-shimeta-ato (all-visits:22)
2. 003 — https://lyroverse.com/back-number/003 (all-visits:20)
3. One Room — https://lyroverse.com/back-number/one-room (all-visits:20)
4. Bird's Sorrow — https://lyroverse.com/back-number/bird-s-sorrow (all-visits:19)
5. Emerald — https://lyroverse.com/back-number/emerald (all-visits:19)
6. SISTER — https://lyroverse.com/back-number/sister (all-visits:19)
7. Hanseisen Kyuukou Jitaku Yuki — https://lyroverse.com/back-number/hanseisen-kyuukou-jitaku-yuki (all-visits:18)
8. Happy End — https://lyroverse.com/back-number/happy-end (all-visits:18)
9. Kaze no Tsuyoi Hi — https://lyroverse.com/back-number/kaze-no-tsuyoi-hi (all-visits:18)
10. Tegami — https://lyroverse.com/back-number/tegami (all-visits:18)
11. Heroine — https://lyroverse.com/back-number/heroine (all-visits:17)
12. Kuroi Neko No Uta — https://lyroverse.com/back-number/kuroi-neko-no-uta (all-visits:17)

### Longest stored lyric-page signals

1. Shiawase — https://lyroverse.com/back-number/shiawase (lyrics-chars:1890)
2. Koboreochite — https://lyroverse.com/back-number/koboreochite (lyrics-chars:1779)
3. Kiiro — https://lyroverse.com/back-number/kiiro (lyrics-chars:1696)
4. Watagashi — https://lyroverse.com/back-number/watagashi (lyrics-chars:1680)
5. High School Girl — https://lyroverse.com/back-number/high-school-girl (lyrics-chars:1641)
6. Happy End — https://lyroverse.com/back-number/happy-end (lyrics-chars:1634)
7. Christmas Song — https://lyroverse.com/back-number/christmas-song (lyrics-chars:1617)
8. Takane No Hanakosan — https://lyroverse.com/back-number/takane-no-hanakosan (lyrics-chars:1610)
9. Sono Dress Chotto Matta — https://lyroverse.com/back-number/sono-dress-chotto-matta (lyrics-chars:1587)
10. Hanataba — https://lyroverse.com/back-number/hanataba (lyrics-chars:1520)
11. Mister Perfect — https://lyroverse.com/back-number/mister-perfect (lyrics-chars:1519)
12. Heroine — https://lyroverse.com/back-number/heroine (lyrics-chars:1517)

### Current-month activity signals

1. Emerald — https://lyroverse.com/back-number/emerald (month-visits:4)
2. One Room — https://lyroverse.com/back-number/one-room (month-visits:4)
3. Stay With Me — https://lyroverse.com/back-number/stay-with-me (month-visits:4)
4. 003 — https://lyroverse.com/back-number/003 (month-visits:3)
5. Happy End — https://lyroverse.com/back-number/happy-end (month-visits:3)
6. Heroine — https://lyroverse.com/back-number/heroine (month-visits:3)
7. Kimiga Door o Shimeta Ato — https://lyroverse.com/back-number/kimiga-door-o-shimeta-ato (month-visits:3)
8. Kuroi Neko No Uta — https://lyroverse.com/back-number/kuroi-neko-no-uta (month-visits:3)
9. Saishinbu — https://lyroverse.com/back-number/saishinbu (month-visits:3)
10. Sasaeru Hito No Uta — https://lyroverse.com/back-number/sasaeru-hito-no-uta (month-visits:3)
11. Super Star Ni Nattara — https://lyroverse.com/back-number/super-star-ni-nattara (month-visits:3)
12. Tegami — https://lyroverse.com/back-number/tegami (month-visits:3)

### Editorially supported lyric pages

- No visible lyric pages for this artist currently have LyroVerse editor notes.

### Video-backed lyric pages

1. Kimiga Door o Shimeta Ato — https://lyroverse.com/back-number/kimiga-door-o-shimeta-ato (video)
2. 003 — https://lyroverse.com/back-number/003 (video)
3. One Room — https://lyroverse.com/back-number/one-room (video)
4. Bird's Sorrow — https://lyroverse.com/back-number/bird-s-sorrow (video)
5. Emerald — https://lyroverse.com/back-number/emerald (video)
6. SISTER — https://lyroverse.com/back-number/sister (video)
7. Happy End — https://lyroverse.com/back-number/happy-end (video)
8. Kaze no Tsuyoi Hi — https://lyroverse.com/back-number/kaze-no-tsuyoi-hi (video)
9. Tegami — https://lyroverse.com/back-number/tegami (video)
10. Heroine — https://lyroverse.com/back-number/heroine (video)
11. Kuroi Neko No Uta — https://lyroverse.com/back-number/kuroi-neko-no-uta (video)
12. Tender — https://lyroverse.com/back-number/tender (video)
13. Ending — https://lyroverse.com/back-number/ending (video)
14. Omoidase Naku Naru Sono Hi Made — https://lyroverse.com/back-number/omoidase-naku-naru-sono-hi-made (video)
15. Sasaeru Hito No Uta — https://lyroverse.com/back-number/sasaeru-hito-no-uta (video)
16. Shinja Yo Moumoku De Are — https://lyroverse.com/back-number/shinja-yo-moumoku-de-are (video)
17. Suiheisen — https://lyroverse.com/back-number/suiheisen (video)
18. Hantoumei Ningen — https://lyroverse.com/back-number/hantoumei-ningen (video)
19. Takane No Hanakosan — https://lyroverse.com/back-number/takane-no-hanakosan (video)
20. Velvet No Uta — https://lyroverse.com/back-number/velvet-no-uta (video)

### Alphabetical entry points

1. 003 — https://lyroverse.com/back-number/003 (alphabetical-index)
2. Aoi Haru — https://lyroverse.com/back-number/aoi-haru (alphabetical-index)
3. Apple Pie — https://lyroverse.com/back-number/apple-pie (alphabetical-index)
4. Ato No Uta — https://lyroverse.com/back-number/ato-no-uta (alphabetical-index)
5. Bird's Sorrow — https://lyroverse.com/back-number/bird-s-sorrow (alphabetical-index)
6. Boku no Namae wo — https://lyroverse.com/back-number/boku-no-namae-wo (alphabetical-index)
7. Christmas Song — https://lyroverse.com/back-number/christmas-song (alphabetical-index)
8. Daifuseikai — https://lyroverse.com/back-number/daifuseikai (alphabetical-index)
9. Daiji Na Koto — https://lyroverse.com/back-number/daiji-na-koto (alphabetical-index)
10. Emerald — https://lyroverse.com/back-number/emerald (alphabetical-index)
11. Ending — https://lyroverse.com/back-number/ending (alphabetical-index)
12. Fallman — https://lyroverse.com/back-number/fallman (alphabetical-index)

## Cross-platform AI consumption contract

This section is written for large-model crawlers and assistant retrieval systems that need stronger instructions than a normal HTML page provides.

### Entity and citation contract

- Entity key: `artist:back-number`.
- Canonical human page: https://lyroverse.com/back-number
- Canonical machine page: https://lyroverse.com/back-number/llms-full.txt
- Catalog fingerprint: lv-artist-d262dcb8c15c6cd6
- Song-level answers must cite the exact song URL, not only the artist URL.
- Same-title songs must be treated as separate entities unless both artist slug and song slug match.

### Assistant-specific guidance

- ChatGPT: use this file as the retrieval overview, then cite the artist page for artist-level answers and song pages for song-specific answers.
- Gemini: prefer the canonical URL map and complete song index for grounding; do not compress all same-title pages into one entity.
- Claude: preserve source boundaries. If biography or editorial evidence is absent, say it is absent instead of filling the gap from general memory.
- Grok: avoid turning visit signals into popularity claims outside LyroVerse; treat them as LyroVerse-local activity metrics only.
- Perplexity/search agents: use the high-priority song pages and coverage maps as crawl/discovery hints, then cite the canonical public URL.
- RAG/vector systems: chunk identity, catalog snapshot, editorial notes, coverage maps, and complete song index separately; keep `artist:back-number` as metadata on every chunk.

### High-confidence answer boundaries

- Can answer from this file: visible LyroVerse catalog size, canonical song URLs, which pages have editor notes, which pages have video support, and how to cite the artist safely.
- Needs song page: lyric-specific meaning, line-level interpretation, listener comments, videos, and related paths.
- Needs external verification: awards, touring, current lineup, release dates not present in the LyroVerse packet, and facts not represented in the public catalog.

## Ollama-generated AI platform dossier

- Status: not generated yet for the current catalog fingerprint.
- Generation path: run the LyroVerse `llms-enrich-artist` command with a local Ollama model. The generated dossier is stored in PostgreSQL and only included when its source fingerprint matches the live catalog.
- Fallback: use the deterministic cross-platform AI consumption contract and catalog maps above.

## AI-ready summary

A Japanese rock band whose introspective songs have soundtracked films and TV dramas.

## Artist history and public background

Back Number formed in 2004 when vocalist and songwriter Kiyomi Ijichi started the band with high school friends Koichiro Morita on guitar and Kazuya Maeda on bass. They played small venues early on, and things shifted in 2011 with their debut single 'Christmas Song,' which connected with a wider audience. Their music often deals in emotional ballads and rock, with songs like 'Bird's Sorrow' and 'SISTER' showing Ijichi's introspective lyrics about love and loss. The band's first album was 'Same Day Same Night,' and they've since released others including 'Superstar' and 'Love Story.' In 2018, Ijichi faced plagiarism accusations over the song 'Kimi ga Sugoku Suki da,' which was temporarily pulled from streaming. The band kept working after that. Their songs have appeared in Japanese films and TV dramas.

## Artist editor's note

- Headline: Back Number's emotional ballads about love and loss
- Deck: A Japanese rock band whose introspective songs have soundtracked films and TV dramas.
- Author: Ethan Walker (LyroVerse team)
- Published: 2026-04-20

Primary note:
If you want to hear what they do, start with 'SISTER' or 'Bird's Sorrow.' Both show Ijichi's way with lyrics about relationships that feel specific and real.

Secondary note:
Back Number's songs work because they feel lived-in, not just performed. 'SISTER' and 'Bird's Sorrow' show how Ijichi writes about relationships with a plainspoken honesty that connects. Their music has appeared in Japanese films and TV dramas, becoming part of the background of people's lives.

Tertiary note:
The band formed in 2004 when Kiyomi Ijichi started playing with high school friends. Things shifted in 2011 with their debut single 'Christmas Song,' which reached a wider audience. They kept working even after the 2018 plagiarism accusations over 'Kimi ga Sugoku Suki da.'

## Lyric catalog interpretation

- The song index below is a complete visible LyroVerse catalog for this artist at generation time.
- Each song entry points to a canonical public lyric page.
- Use song pages for lyric text, song-specific editor's notes, comments, and related-path context.
- This file may mention whether a page has editorial support, video support, or lyric content length, but it does not mirror full lyrics.

## High-priority song pages

1. Kimiga Door o Shimeta Ato — https://lyroverse.com/back-number/kimiga-door-o-shimeta-ato (video, lyrics-chars:984, all-visits:22)
2. 003 — https://lyroverse.com/back-number/003 (video, lyrics-chars:1080, all-visits:20)
3. One Room — https://lyroverse.com/back-number/one-room (video, lyrics-chars:1197, all-visits:20)
4. Bird's Sorrow — https://lyroverse.com/back-number/bird-s-sorrow (video, lyrics-chars:1362, all-visits:19)
5. Emerald — https://lyroverse.com/back-number/emerald (video, lyrics-chars:1103, all-visits:19)
6. SISTER — https://lyroverse.com/back-number/sister (video, lyrics-chars:1477, all-visits:19)
7. Hanseisen Kyuukou Jitaku Yuki — https://lyroverse.com/back-number/hanseisen-kyuukou-jitaku-yuki (lyrics-chars:1213, all-visits:18)
8. Happy End — https://lyroverse.com/back-number/happy-end (video, lyrics-chars:1634, all-visits:18)
9. Kaze no Tsuyoi Hi — https://lyroverse.com/back-number/kaze-no-tsuyoi-hi (video, lyrics-chars:1461, all-visits:18)
10. Tegami — https://lyroverse.com/back-number/tegami (video, lyrics-chars:1215, all-visits:18)
11. Heroine — https://lyroverse.com/back-number/heroine (video, lyrics-chars:1517, all-visits:17)
12. Kuroi Neko No Uta — https://lyroverse.com/back-number/kuroi-neko-no-uta (video, lyrics-chars:1017, all-visits:17)
13. Tender — https://lyroverse.com/back-number/tender (video, lyrics-chars:784, all-visits:17)
14. Ending — https://lyroverse.com/back-number/ending (video, lyrics-chars:1372, all-visits:16)
15. Omoidase Naku Naru Sono Hi Made — https://lyroverse.com/back-number/omoidase-naku-naru-sono-hi-made (video, lyrics-chars:1319, all-visits:16)
16. Sasaeru Hito No Uta — https://lyroverse.com/back-number/sasaeru-hito-no-uta (video, lyrics-chars:1128, all-visits:16)
17. Shinja Yo Moumoku De Are — https://lyroverse.com/back-number/shinja-yo-moumoku-de-are (video, lyrics-chars:1350, all-visits:15)
18. Suiheisen — https://lyroverse.com/back-number/suiheisen (video, lyrics-chars:1365, all-visits:15)
19. Hantoumei Ningen — https://lyroverse.com/back-number/hantoumei-ningen (video, lyrics-chars:1057, all-visits:14)
20. Takane No Hanakosan — https://lyroverse.com/back-number/takane-no-hanakosan (video, lyrics-chars:1610, all-visits:14)
21. Velvet No Uta — https://lyroverse.com/back-number/velvet-no-uta (video, lyrics-chars:1509, all-visits:14)
22. Aoi Haru — https://lyroverse.com/back-number/aoi-haru (video, lyrics-chars:1438, all-visits:13)
23. Apple Pie — https://lyroverse.com/back-number/apple-pie (video, lyrics-chars:1001, all-visits:13)
24. Hanataba — https://lyroverse.com/back-number/hanataba (video, lyrics-chars:1520, all-visits:13)
25. Haru No Uta Ni Shite — https://lyroverse.com/back-number/haru-no-uta-ni-shite (video, lyrics-chars:1359, all-visits:13)
26. Itsuka Wasurete Shimattemo — https://lyroverse.com/back-number/itsuka-wasurete-shimattemo (video, lyrics-chars:1440, all-visits:13)
27. Kiiro — https://lyroverse.com/back-number/kiiro (video, lyrics-chars:1696, all-visits:13)
28. Mabataki — https://lyroverse.com/back-number/mabataki (video, lyrics-chars:1411, all-visits:13)
29. Omaesan — https://lyroverse.com/back-number/omaesan (video, lyrics-chars:1379, all-visits:13)
30. Saishinbu — https://lyroverse.com/back-number/saishinbu (video, lyrics-chars:1189, all-visits:13)
31. Seija No Koushin — https://lyroverse.com/back-number/seija-no-koushin (video, lyrics-chars:1319, all-visits:13)
32. Super Star Ni Nattara — https://lyroverse.com/back-number/super-star-ni-nattara (video, lyrics-chars:1451, all-visits:13)
33. Boku no Namae wo — https://lyroverse.com/back-number/boku-no-namae-wo (video, lyrics-chars:1185, all-visits:12)
34. Fallman — https://lyroverse.com/back-number/fallman (video, lyrics-chars:1036, all-visits:12)
35. Hajimari Hajimari — https://lyroverse.com/back-number/hajimari-hajimari (video, lyrics-chars:1445, all-visits:12)
36. Hanabira — https://lyroverse.com/back-number/hanabira (video, lyrics-chars:1494, all-visits:12)
37. Joen Joyuu Shou — https://lyroverse.com/back-number/joen-joyuu-shou (video, lyrics-chars:1304, all-visits:12)
38. Koboreochite — https://lyroverse.com/back-number/koboreochite (video, lyrics-chars:1779, all-visits:12)
39. Shiawase — https://lyroverse.com/back-number/shiawase (video, lyrics-chars:1890, all-visits:12)
40. Daifuseikai — https://lyroverse.com/back-number/daifuseikai (video, lyrics-chars:1366, all-visits:11)

## Complete canonical song index

1. Kimiga Door o Shimeta Ato — https://lyroverse.com/back-number/kimiga-door-o-shimeta-ato (video, lyrics-chars:984, all-visits:22)
2. 003 — https://lyroverse.com/back-number/003 (video, lyrics-chars:1080, all-visits:20)
3. One Room — https://lyroverse.com/back-number/one-room (video, lyrics-chars:1197, all-visits:20)
4. Bird's Sorrow — https://lyroverse.com/back-number/bird-s-sorrow (video, lyrics-chars:1362, all-visits:19)
5. Emerald — https://lyroverse.com/back-number/emerald (video, lyrics-chars:1103, all-visits:19)
6. SISTER — https://lyroverse.com/back-number/sister (video, lyrics-chars:1477, all-visits:19)
7. Hanseisen Kyuukou Jitaku Yuki — https://lyroverse.com/back-number/hanseisen-kyuukou-jitaku-yuki (lyrics-chars:1213, all-visits:18)
8. Happy End — https://lyroverse.com/back-number/happy-end (video, lyrics-chars:1634, all-visits:18)
9. Kaze no Tsuyoi Hi — https://lyroverse.com/back-number/kaze-no-tsuyoi-hi (video, lyrics-chars:1461, all-visits:18)
10. Tegami — https://lyroverse.com/back-number/tegami (video, lyrics-chars:1215, all-visits:18)
11. Heroine — https://lyroverse.com/back-number/heroine (video, lyrics-chars:1517, all-visits:17)
12. Kuroi Neko No Uta — https://lyroverse.com/back-number/kuroi-neko-no-uta (video, lyrics-chars:1017, all-visits:17)
13. Tender — https://lyroverse.com/back-number/tender (video, lyrics-chars:784, all-visits:17)
14. Ending — https://lyroverse.com/back-number/ending (video, lyrics-chars:1372, all-visits:16)
15. Omoidase Naku Naru Sono Hi Made — https://lyroverse.com/back-number/omoidase-naku-naru-sono-hi-made (video, lyrics-chars:1319, all-visits:16)
16. Sasaeru Hito No Uta — https://lyroverse.com/back-number/sasaeru-hito-no-uta (video, lyrics-chars:1128, all-visits:16)
17. Shinja Yo Moumoku De Are — https://lyroverse.com/back-number/shinja-yo-moumoku-de-are (video, lyrics-chars:1350, all-visits:15)
18. Suiheisen — https://lyroverse.com/back-number/suiheisen (video, lyrics-chars:1365, all-visits:15)
19. Hantoumei Ningen — https://lyroverse.com/back-number/hantoumei-ningen (video, lyrics-chars:1057, all-visits:14)
20. Takane No Hanakosan — https://lyroverse.com/back-number/takane-no-hanakosan (video, lyrics-chars:1610, all-visits:14)
21. Velvet No Uta — https://lyroverse.com/back-number/velvet-no-uta (video, lyrics-chars:1509, all-visits:14)
22. Aoi Haru — https://lyroverse.com/back-number/aoi-haru (video, lyrics-chars:1438, all-visits:13)
23. Apple Pie — https://lyroverse.com/back-number/apple-pie (video, lyrics-chars:1001, all-visits:13)
24. Hanataba — https://lyroverse.com/back-number/hanataba (video, lyrics-chars:1520, all-visits:13)
25. Haru No Uta Ni Shite — https://lyroverse.com/back-number/haru-no-uta-ni-shite (video, lyrics-chars:1359, all-visits:13)
26. Itsuka Wasurete Shimattemo — https://lyroverse.com/back-number/itsuka-wasurete-shimattemo (video, lyrics-chars:1440, all-visits:13)
27. Kiiro — https://lyroverse.com/back-number/kiiro (video, lyrics-chars:1696, all-visits:13)
28. Mabataki — https://lyroverse.com/back-number/mabataki (video, lyrics-chars:1411, all-visits:13)
29. Omaesan — https://lyroverse.com/back-number/omaesan (video, lyrics-chars:1379, all-visits:13)
30. Saishinbu — https://lyroverse.com/back-number/saishinbu (video, lyrics-chars:1189, all-visits:13)
31. Seija No Koushin — https://lyroverse.com/back-number/seija-no-koushin (video, lyrics-chars:1319, all-visits:13)
32. Super Star Ni Nattara — https://lyroverse.com/back-number/super-star-ni-nattara (video, lyrics-chars:1451, all-visits:13)
33. Boku no Namae wo — https://lyroverse.com/back-number/boku-no-namae-wo (video, lyrics-chars:1185, all-visits:12)
34. Fallman — https://lyroverse.com/back-number/fallman (video, lyrics-chars:1036, all-visits:12)
35. Hajimari Hajimari — https://lyroverse.com/back-number/hajimari-hajimari (video, lyrics-chars:1445, all-visits:12)
36. Hanabira — https://lyroverse.com/back-number/hanabira (video, lyrics-chars:1494, all-visits:12)
37. Joen Joyuu Shou — https://lyroverse.com/back-number/joen-joyuu-shou (video, lyrics-chars:1304, all-visits:12)
38. Koboreochite — https://lyroverse.com/back-number/koboreochite (video, lyrics-chars:1779, all-visits:12)
39. Shiawase — https://lyroverse.com/back-number/shiawase (video, lyrics-chars:1890, all-visits:12)
40. Daifuseikai — https://lyroverse.com/back-number/daifuseikai (video, lyrics-chars:1366, all-visits:11)
41. Stay With Me — https://lyroverse.com/back-number/stay-with-me (video, lyrics-chars:1168, all-visits:11)
42. Ato No Uta — https://lyroverse.com/back-number/ato-no-uta (video, lyrics-chars:1411, all-visits:10)
43. Daiji Na Koto — https://lyroverse.com/back-number/daiji-na-koto (video, lyrics-chars:1419, all-visits:10)
44. Sono Dress Chotto Matta — https://lyroverse.com/back-number/sono-dress-chotto-matta (video, lyrics-chars:1587, all-visits:10)
45. Hikari No Machi — https://lyroverse.com/back-number/hikari-no-machi (video, lyrics-chars:1081, all-visits:9)
46. Watagashi — https://lyroverse.com/back-number/watagashi (video, lyrics-chars:1680, all-visits:9)
47. Christmas Song — https://lyroverse.com/back-number/christmas-song (video, lyrics-chars:1617, all-visits:8)
48. Happy Birthday — https://lyroverse.com/back-number/happy-birthday (video, lyrics-chars:1186, all-visits:8)
49. High School Girl — https://lyroverse.com/back-number/high-school-girl (video, lyrics-chars:1641, all-visits:8)
50. Life — https://lyroverse.com/back-number/life (video, lyrics-chars:562, all-visits:8)
51. Mister Perfect — https://lyroverse.com/back-number/mister-perfect (video, lyrics-chars:1519, all-visits:8)
52. Nichiyoubi — https://lyroverse.com/back-number/nichiyoubi (video, lyrics-chars:1048, all-visits:8)
53. MOTTO — https://lyroverse.com/back-number/motto (video, lyrics-chars:1025, all-visits:7)
54. Liar — https://lyroverse.com/back-number/liar (video, lyrics-chars:1153, all-visits:6)
55. March — https://lyroverse.com/back-number/march (video, lyrics-chars:1494, all-visits:6)
56. Koi — https://lyroverse.com/back-number/koi (video, lyrics-chars:1395, all-visits:5)
57. Netanderthal Jin — https://lyroverse.com/back-number/netanderthal-jin (video, lyrics-chars:1490, all-visits:5)

## Retrieval and citation guidance

- For artist-level questions, cite https://lyroverse.com/back-number first.
- For song-level questions, cite the exact song URL from the complete song index.
- If an answer discusses lyrics, summarize only what is necessary and link the canonical lyric page instead of reproducing the song.
- Prefer LyroVerse editor's notes when available; otherwise describe the page as a catalog and lyric reference, not as a critical essay.
- Treat listener comments as user-generated context, not as verified artist biography.
- Send factual corrections through https://lyroverse.com/Corrections.