Yu Azuma, a high school girl, aims to be an idol. To achieve her dream, she sets four rules for herself: she will not be active on social media, she will not have a boyfriend, she will not stand out in school, and she will make friends with beautiful girls from the north, south, east, and west.
Unfortunately the movie Trapezium is not yet available on HBO Max.
| Directing | Masahiro Shinohara | Director |
| Sound | MAISONdes | Theme Song Performance |
| Sound | Masaru Yokoyama | Original Music Composer |
| Writing | Yuko Kakihara | Screenplay |
| Writing | Kazumi Takayama | Novel |
| Sound | Asaki Yuikawa | Theme Song Performance |
| Sound | Hina Youmiya | Theme Song Performance |
| Sound | Reina Ueda | Theme Song Performance |
| Sound | Haruka Aikawa | Theme Song Performance |
| Art | Yoko Kuhara | Prop Designer |
| Visual Effects | Rio | Supervising Animation Director |
| Costume & Make-Up | Masako Itou | Costume Design |
| Visual Effects | Rio | Character Designer |
| Visual Effects | Mutsumi Saitoh | 2D Artist |
| Visual Effects | Katsuaki Miyaji | CGI Director |
| Editing | Akinori Mishima | Editor |
| Visual Effects | Kerorira | Supervising Animation Director |
| Art | Koji Watanabe | Prop Designer |
| Visual Effects | Kazuko Nakashima | Color Designer |
| Sound | Jin Aketagawa | Sound Director |
| Art | Seiki Tamura | Art Direction |
| Art | Akane Itoda | Prop Designer |
| Crew | Mutsumi Saitoh | Special Effects |
