Mari is a female university student. She takes part in an experiment held by popular VTuber Sophia. When Mari arrives at the place where the experiment is to be held, she notices the place looks like a prison. 12 people participate in the experiment and they are assigned roles of prisoners and prison officers. The experiment takes place over 7 days. Mari is assigned the role of a prison officer. The experiment turns violent.
Length 87 minutes
Mayu Hotta | Ken Nakajima | Kenshiro Iwai | Yûka Yano | Tateto Serizawa | Shôhei Uno | Mamiko Ito | Haruka Tateishi | Nao Okabe | Kanako Miyashita | Chihiro Okamoto | Moeko Konno | Tomoya Maeno | Tomomi Itano