An aimless college student comes upon the aftermath of a murder scene one night, and without thinking, grabs the titular weapon. He takes it home and keeps it safely hidden away, but curiosity gradually begins to consume him.
| Actor | Role |
|---|---|
 Nijiro MurakamiToru Nishikawa | Toru Nishikawa |
 Alice HiroseYuko Yoshikawa | Yuko Yoshikawa |
 Lily FrankyNot listed | Not listed |
 Kyoko HinamiNot listed | Not listed |
| RRisa NiigakiNot listed | Not listed |
 Amane OkayamaNot listed | Not listed |
| JJunpei GotoNot listed | Not listed |
 Yuji NakamuraNot listed | Not listed |
| JJyo HyugaNot listed | Not listed |
 Moemi KatayamaNot listed | Not listed |
 Satoru JitsunashiNot listed | Not listed |
 Sahel RosaNot listed | Not listed |
| HHideki YamanakaNot listed | Not listed |
 Yuki TayamaNot listed | Not listed |
 Jun MurakamiNot listed | Not listed |
| YYu SaotomeNot listed | Not listed |
 Kazuhiro NakaharaNot listed | Not listed |
 Kanie AsadNot listed | Not listed |
 Nobu MorimotoNot listed | Not listed |
| MMireho MisakiNot listed | Not listed |
| AAzusa NakazawaNot listed | Not listed |