The drama tells the story of a group of seven university students who travel to a deserted island where a strange decagonal mansion stands. It was the scene of a grisly mass murder six months earlier, and events soon turn ominous.

• Tomoya Oku
• Munetaka Aoki
• Akihiro Kakuta
• Toru Nakamura
• Ayumu Mochizuki
• Neru Nagahama
• Yuki Imai
• Kosuke Suzuki