In a drunken moment, our protagonist Shuu crosses the line with his childhood friend Mia. Afraid of ruining their long-standing relationship, he tries to treat that night as if it "never happened"—but he just can’t get Mia out of his head… Then, during club activities, Shuu gets injured, and Mia comes to his side with deep concern! When her soft chest brushes against him at such an unguarded distance, Shuu can no longer hold back his reason…!?