A married woman, Sho, who spends her days while running a clinic on her own. While she is commuting by train as usual, a man sneaks up on her... Her lower body being toyed with by her pervert resonates with a numbingly sweet pain and sinks Sho's body into the abyss of pleasure. She can't tell anyone and is frustrated by herself. Her desire for her quietly surging pervert gradually eats away at her body, and contrary to her heart's resistance, she finds herself boarding the train with wild anticipation.
