Otonoha Letter ~Ame no Oto~
| Published by | Team Entertainment |
| Catalog number | KDGG-0588 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 15 tracks |
| Release date | December 15, 2020 |
| Genres |
M-01 - 3DS Game "RADIANT HISTORIA: PERFECT CHRONOLOGY" Opening Theme
M-02 - PC Game "Hataraku Otona no Ren'ai Jijou 2" Opening Theme
M-03 - Web Browser Game "Kanpani☆Girls" Opening Theme
M-04 - Arcade Music Game "CHUNITHM" Song
M-05 - PC Game "Kagi wo Kakushita Kago no Tori" Opening Theme
M-06 - PC Game "Girls Book Maker -Shiawase no Libretto-" Ending Theme
M-07 - PC Game "Nekogami-sama to, Nanatsuboshi -Imouto no Ane-" Opening Theme
M-08 - Arcade Music Game "maimai MiLK PLUS" Theme Song
M-09 - VR Online Action Game "SWORDS of GARGANTUA" Image Song
M-10 - Arcade Music Game "CHUNITHM" Song
M-11 - PC Game "Curio Dealer" Linaria Ending Theme
M-12 - PSVita Game "Moujuutachi to Ohimesama ~in blossom~" Ending Theme
M-13 - PC Game "Kamaitachi no Yoru: Rinne Saisei" Theme Song
M-14 - PC Game "RIDDLE JOKER" Ayase Mitsukasa Ending Theme
M-15 - New Track
M-02 - PC Game "Hataraku Otona no Ren'ai Jijou 2" Opening Theme
M-03 - Web Browser Game "Kanpani☆Girls" Opening Theme
M-04 - Arcade Music Game "CHUNITHM" Song
M-05 - PC Game "Kagi wo Kakushita Kago no Tori" Opening Theme
M-06 - PC Game "Girls Book Maker -Shiawase no Libretto-" Ending Theme
M-07 - PC Game "Nekogami-sama to, Nanatsuboshi -Imouto no Ane-" Opening Theme
M-08 - Arcade Music Game "maimai MiLK PLUS" Theme Song
M-09 - VR Online Action Game "SWORDS of GARGANTUA" Image Song
M-10 - Arcade Music Game "CHUNITHM" Song
M-11 - PC Game "Curio Dealer" Linaria Ending Theme
M-12 - PSVita Game "Moujuutachi to Ohimesama ~in blossom~" Ending Theme
M-13 - PC Game "Kamaitachi no Yoru: Rinne Saisei" Theme Song
M-14 - PC Game "RIDDLE JOKER" Ayase Mitsukasa Ending Theme
M-15 - New Track
| 1 | 落花流水 | ||
| 2 | Magenta Tear | ||
| 3 | Frontier Days | ||
| 4 | 恋のチャイム | ||
| 5 | 鍵を隠したカゴのトリ | ||
| 6 | Recall My Sketch | ||
| 7 | Mr.sister | ||
| 8 | FestivaLight | ||
| 9 | Astrea’s Children | ||
| 10 | 願い星 | ||
| 11 | jump into the sky | ||
| 12 | 虹色世界 | ||
| 13 | 廻雪の詠 | ||
| 14 | ゆびきり | ||
| 15 | ブレイクノート |
