University student Kouhei Yunoki continues to wait for his lover to contact him. One day, when he comes to, he's in his friend's room. However, he's on a bed, and is stark naked... His "friend" Yuzurihara is a sociable guy with good looks, and is someone who he somehow got close to in university. Pinned by Yuzurihara's gaze, Yunoki questions, "Are you going to assault me?" and then... (Source: Kadokawa, translated)