The students of the all-boy school Kanenone Gakuen are coming for a visit to an all-girl school for a pretest of the upcoming co'oing of the two schools. Four boys from the Kanenone Gakuen, Bacchi-Gu, Tenjin, Ichiban and Yu-Suke get caught from peeping and are later accused of panties thievery, and they have no choice but to clean their reputation by finding the real thief. (Source: ANN)