School Entrapment Chronicles ~A school that fell for the big breasts of a plain girl~ [v1.0] [Situation Department]

The protagonist has been living a lackluster life. But one day, she discovers that her own “body” attracts men…
Ever since she was little, she has not been good at sports. Because she has a personality that makes it difficult for her to say no, she is often left with troublesome tasks. Up until now, “Kousaka Shiho” has lived a somewhat lackluster life. After entering high school, she gets her first boyfriend, but he only thinks about releasing his sexual desires, and contrary to her expectations, Shiho is once again left unsatisfied. However, it is there that she comes to understand “men’s sexual desires” and “how her own body appears to the opposite sex.”
Shiho has a hidden talent for making men feel good, and she begins to use her body to solve everyday problems. With each experience, her technique for handling her breasts improves day by day. Soon, she begins to manipulate all the men at school.