atau dikenal sebagai
At an isolated reform school, transfer student Itsuki joins a drama group—but when real murders mimic their dark plays, fear, love, and secrets spiral out of control.
Ruka is a young girl whose parents are separated and whose father works in an aquarium. When two boys, Umi and Sora, who were raised in the sea by dugongs, are brought to the aquarium, Ruka feels drawn to them and begins to realize that she has the same sort of supernatural connection to the ocean that they do. Umi and Sora's special power seems to be connected to strange events that have been occurring more and more frequently, such as the appearance of sea creatures far from their home territory and the disappearance of aquarium animals around the world. However, the exact nature of the boys' power and of the abnormal events is unknown, and Ruka gets drawn into investigating the mystery that surrounds her new friends.
This is a continuation of Friends Games. Now the group of friends realises they have fallen into this game and they are in the second set of game, Kageguchi Sugoroku. Will Katagiri Yuichi find out who led them into this deceptive game between money and friends?