Torikago no Tsugai

Birdcage Castle / Birdcage of a Pair / Kafesin Çift Kuşları / 鳥籠ノ番 / 鸟笼之番 / Zamek Ptasiej Klatki To search for a missing friend, 6 people arrived in a closed theme park.

Into the "Birdcage Castle," which should have been deserted…

However, in there, pairs of two people became connected by a chain, and now, a game with one's life on the line has begun!