Chiteki na Jukujo Erorist ~Man'in Densha de Otto ni Kakurete Taninbou Shibori~

One day, she was molested by a maniac on a crowded train. When she didn't resist, the act escalated and she experienced such a pleasure that her “womanhood” was awakened.

"I want to taste that pleasure one more time..."

Even if you get on a crowded train with your feelings in your heart, the majority of men in general do not molest women.

"It's normal men who don't molest people, right?"

"...Then how about I do it myself...?"

[From official site]