Love is love. Someday, the pain of being in love will be an endearing memory. No matter who the feelings are towards, no matter what form it takes, all love and lifestyles have the same value. An omnibus anime tells the stories of “The wedding of an ex”, “a student and a teacher at an all-boys’ school” and “childhood friends whose bodies and hearts change with adolescence.”
Unfortunately the movie Happy-Go-Lucky Days is not yet available on HBO Max.
| Writing | Takako Shimura | Comic Book |
| Sound | Toshiya Wada | Sound Effects |
| Camera | Junpei Takatsu | Director of Photography |
| Sound | CreepHyp | Original Music Composer |
| Visual Effects | Yuki Murotsuka | Compositing Artist |
| Writing | Yoriko Tomita | Screenplay |
| Writing | Takuya Sato | Screenplay |
| Writing | Yasunori Ide | Screenplay |
| Visual Effects | Sachie Nakamura | Color Designer |
| Crew | Hiroshi Kitashiro | Mixing Engineer |
| Visual Effects | Haruka Sagawa | Animation Director |
| Visual Effects | Eriko Haga | Animation Director |
| Production | Keisuke Sato | Producer |
| Production | Yusuke Terada | Producer |
| Sound | Takuya Sato | Sound Director |
| Directing | Koji Aritomi | Second Unit Director |
| Art | Yutaka Ito | Art Designer |
| Art | Yutaka Ito | Background Designer |
| Art | Yasunori Ide | Storyboard Artist |
| Directing | Takuya Sato | Director |
| Visual Effects | Haruka Sagawa | Character Designer |
| Art | Yukihiro Saito | Art Direction |
| Editing | Mai Hasegawa | Editor |
