Yuichi and friends reach the end of Kokkuri-san, uncovering dimensions of trickery in the Tomodachi Game that they hadn't imagined. When they move on to a second game, a socially destructive version of sugoroku, the group struggles to maintain balance as personal secrets are revealed and trust is stretched to its absolute limit.

Yuichi, who hasn’t left the starting point in the two days since the game began, suddenly announces his desire to switch to Group K. The Group K members, puzzled by Yuichi’s apparent intention to abandon his hiding teammate, ask their Captain to decide whether or not to let Yuichi in. Meanwhile, Tenji, who has stayed in hiding and trusted Yuichi all along, is finally reaching his physical breaking point.