Performer:
M-01: Kako Takafuji (CV: Rana Morishita), Hotaru Shiragiku (CV: Satomi Amano)
M-02: Kako Takafuji (CV: Rana Morishita)
M-03: Hotaru Shiragiku (CV: Satomi Amano)
Composer: Takaaki Utsumi [TRYTONELABO]
Arranger: Takaaki Utsumi [TRYTONELABO]
Lyricist: Takaaki Utsumi [TRYTONELABO]
A.Guitar: Takaaki Utsumi [TRYTONELABO]
E.Guitar: Tsubasa Ohta
Strings: Honoka Sato Strings
Strings Arrangement: Shuhei Tsubota [TRYTONELABO]
Recording & Mixing Engineer: Takayuki Noda
Sound Producer: Tomohiro Kashiwaya [柏谷智浩]*
Director: Tomohiro Kashiwaya*
Mastering Engineer: Hiroshi Satow*
* = NIPPON COLUMBIA
Album was composed by Takaaki Utsumi and was released on March 25, 2020. Soundtrack consists of 5 tracks tracks with duration over about 25 minutes. Album was released by Nippon Columbia.
CD 1
| 1 | Shiawase no Rule (M@STER VERSION) | 04:46 | |
| 2 | Shiawase no Rule (M@STER VERSION) Takafuji Kako Solo Remix | 04:46 | |
| 3 | Shiawase no Rule (M@STER VERSION) Shiragiku Hotaru Solo Remix | 04:46 | |
| 4 | Shiawase no Rule (M@STER VERSION) Original Karaoke | 04:48 | |
| 5 | Shiawase no Rule (Game Version) | 02:10 | |
