Hikaru, a cheerful person who works at a library, meets Mito and Monaca, a rather noisy lesbian couple, on the train on the way home from work.When Mito and Monaca see Hikaru reading a book, they instantly fall in love with her and think, "That's crazy! That girl is so cute!"In order to somehow draw Hikaru into lesbianism, the two of them come up with strategies to attract Hikaru's attention, such as fondling each other's breasts and provoking a deep kiss in front of her.Hikaru warns, "You can't do that on the train!" without realizing that it's Mito and Monaca's trick.Thanks to the cheerful nature of a gal and Hikaru's bright personality, the three soon become like friends.However, as the girls' talk gets more exciting, Hikaru feels uncomfortable with Mito and Monaca's behavior, which gradually increases their body touching towards Hikaru.Their actions gradually escalate, and they hold Hikaru's thighs in double crab scissors from both sides, and extend their fingertips to her defenseless private parts...Hikaru can't hide her confusion, but as she develops her lesbian skills with Mito and Monaca's crab scissor technique, she becomes excited to meet them on the train on the way home from work.
