One day on the train to work, Mayama, a company employee, found his hand pushed against the chest of a young man dressed as a woman, against his will. The next day, he was coerced into a game of "molesting" with a photo taken the day before used as leverage. Tsukasa, a college student, can only feel aroused on the train due to his past trauma. Each morning, they meet in the same spot, their bodies pressed closely together until they reach their stop. As their encounters continue, they must navigate the complexities of their situation and the unexpected bond that begins to form between them.

"I have to push him away, but when he touched me, his eyes trembled with sadness, and I couldn't resist..."

(Source: Tokuma Shoten, translated)