On the way to visit Shun, who didn't attend class, Hiroshi and Anna are drawn by a mysterious butterfly and enter the big house “Jail House”. They get lost and wander around the house. Meanwhile, Takuro, Mika and Takeshi, who bullies Shun, enter the “Jail House” to test their courage.

• Digital Frontier
• Taishi Nakagawa
• Yuna Taira
• Shota Matsushima
• Ikumi Hisamatsu
• Reo Kansyuji
• Soran Tamoto