Maki, a married woman who gave up her seat on a crowded train to an elderly person, instantly captured the heart of a student named Atsushi with her casual actions and smile. Atsushi, who didn't even know her address or name, followed Maki, uncovering her identity, address, and family background. As Atsushi's stalking behavior intensified, his desire to touch Maki's skin reached a boiling point, leading him to create an extremely potent aphrodisiac. In the crowded train, he slowly inserted his drug-laced fingers into Maki's pussy...
