Apparently the girl I admire at school is being molested on the train. - Shirakami Sakka

The movie revolves around a complex and inappropriate relationship between a female student and her teacher, exploring themes of obsession, harassment, and the blurring of professional boundaries. The story delves into the darker aspects of human nature, revealing a disturbing dynamic between the two main characters. As the narrative unfolds, it becomes clear that the teacher's past experiences have contributed to his current actions, leading to a toxic and exploitative situation.