TV personality Misaki Tachibana is convinced that she is in Quindecim as part of a hidden-camera TV show, and enlists her counterpart, Yousuke Tateishi, to help her liven the show up. Decim takes measures to ensure extreme conditions for the contestants.

A high-school girl named Mayu arrives at a Japanese-style bar being tended by Ginti. He demands that she play a game against the man in the bar, who she instantly recognizes as Harada, of the boy idol band C.H.A, and she eagerly accepts.