After childbirth, Riho became sweatier and far more sensitive than before. On her way home after cycling her child to daycare, she accidentally bumps into a pedestrian named Nakano. She apologizes, but he refuses to let it go, stares at her sweaty cleavage, and demands that she take him home to show proper remorse. With the accident held over her, Riho submits as he meticulously plays with her nipples and has sex with her repeatedly without a condom, awakening a freedom and pleasure she has never felt with her husband.