A "uniform reunion" where both boys and girls wear the uniforms of their time. Ai, who received an invitation from a classmate from high school, decided to attend with her boyfriend's approval. Ai, who was a serious and plain girl, had turned 20 years old, but when she met her classmates again after a long time, they had all become frivolous after their "university debut"... "No, I have a boyfriend...!" The boys, who were aroused by the sight of Ai in her school uniform, began to play with her body, which was burning with alcohol, and Ai, who was forced to kiss him, was swept away and taken away...