SDDE-568 Dear Sir - To me, a high school student. - Mayu from the art club, whom you have always liked and dated, had sex with all the boys in her class Azumi Hina

In the winter of my fourth year at university, my classmates meet again for the first time in five years at a class reunion. - The main character, Takao, has not yet received a job offer and attends the reunion with mixed feelings. - Mayu, the girlfriend he was dating at the time, was also there. - There, Takao learns a shocking truth. - Surprisingly, Mayu was having sex with most of the boys in her class. - Another face of her that I don't know.