Aya Miyazaki, the girl chosen to be our class representative, is a doskebe student who uses her big butt to serve the boys and teachers to maintain order at school. The peace of the school is kept by the tricks of a too-beautiful and lustful younger sister!

The lust of my best friend surprised me; I didn't expect that with such an innocent appearance, she could hide such a desperately passionate demon within her.
But that doesn't make me shy; on the contrary, I enjoy this kind of thing very lewd and very pleasurable.