To search for a missing friend, 6 people arrived in a closed theme park. "Birdcage Castle" which should be deserted... However, in there, groups of two people are created and are connected by a chain, and now, the game of putting one's life on a line began!

The anthology features illustrations and comics drawn by other mangaka as well as Tsubaki Izumi herself:• The King’s Game, Nozaki-kun by Izumi Tsubaki