"There's someone who only touches me during my period—what could they possibly be thinking?" The train becomes a lewd, chaotic space of eroticism, where close physical contact has become part of everyday life. Within this unsettling atmosphere, ambiguous relationships and sexual desires intertwine. Caught between discomfort and curiosity, people unconsciously draw their bodies closer. In this context, the film sharply highlights the bizarre eroticism embedded in daily routines, exploring the meaning behind physical touch and the complex human relationships lurking beneath.