The protagonist lives alone in an apartment owned by his uncle and lives a carefree school life. One spring day, his uncle can’t stand seeing him confining himself in his room any more and tells him to go out and find love while he is still young; however, he doesn’t have any experience with girls nor does he have anyone that he’s interested in.
The Crimson Girls protect women from train molesters. Mitsu, one of the two members, caught the attention of a unique man who could make a woman orgasm with just a touch. He and some of his friends trap Mitsu on the train and brought her to the hotel where she was tortured and had her virginity taken. Now that one of the Crimson Girls has succumbed to his will, his next target is Saki…