My nickname is "Mutsuri Ero GOD" and has a wealth of erotic knowledge, but my classmate who missed the last train came to me and secretly made it a hangout...

Even in the vocational school class, I don't have many friends, and my hobbies are otaku, so I hang out with relatively plain friends. My only advantage is my extensive knowledge of eroticism! He is well versed in everything related to sexual concerns, not only AV, but also by his classmates, and in the shadows he is called "Mutsuri Ero GOD." Although they are only in a relationship where they greet girls in their classmates, by chance it is revealed that they live very close to school. My classmates who learned about this rumor came to me to stay at my house every time they missed the last train...