Nagato is a simple student who all of a sudden finds himself in deep when the most popular girl in class, his childhood friend, and an old unrequited love all confess to him at the same time! His eroge-filled youth is about to begin!
Our main character, Nagato Shinobu, was confessed to by Ayame, Kanna, and Yuri, each of them having sex with him after they did so. He tried to choose just one of them before the school festival.