Momoka is trapped aboard a stalled train during brutally hot weather, with the air conditioning broken as well, leaving her drenched in sweat. An older passenger grows aroused by the sight and starts groping her when she has nowhere to escape. She resists at first but gradually begins to enjoy it, and other passengers join in until it becomes a foursome. They finish by covering her in cum. The experience awakens a taste for being touched on trains, and days later she lets a businessman-looking stranger grope her again. Thoroughly aroused, she follows him to a hotel, fucks for hours, and ends up creampied.