Romantic Journey: Departure(1986)

"The 0:10 p.m. train is full of homosexuals and homoeroticism. A beautiful boy takes off his panties."

Overview

A salaryman, Aisuke, was molested by an older man on a crowded commuter train. He couldn't forget the excitement and started looking for the man every morning. When he finally finds the man, he denies knowing anything . But Aisuke is not convinced, an so follows him home...