IRyS is a prim and proper girl, well-mannered, polite, and she has a successful career as both a streamer and an idol, with thousands of fans supporting her with adoration. She just has a tiny dirty little secret: she fantasizes about unknown men touching her on the train, a fetish unlocked by way too many hours of reading doujinshi and playing eroges.

This day, she decided to take the train during rush hour, entering the most crowded passenger car she could find in search of a cute guy that might fulfill her deranged fantasies. She ́s not crazy though, she knows that revealing her face would be dangerous so she took great care to wear a facemask, that should be enough right?

IRyS has found her target for that morning, you, and she is going to make this train rain a lot more memorable for both of you.

Art by TAMAMOICE.