"I'm an angel, the real thing," said the beautiful white boy, Shirahato Inori. Floating next to him was a mysterious stuffed animal-like creature called "God." Inori makes money by using the power of God to grant wishes as an angel, or "Tenkatsu" for short. However, to grant a wish, it is necessary to have sex with a man and offer the semen that is received into her body to God.

Her homeroom teacher, Shika Kanade, tries to stop Inori from Tenkatsu, but an enraged Inori turns him into a little girl. "Ahaha! That's great!!" "If you're so worried about me, then do Tenkatsu in my place in that form!"

But Kanade doesn't give up. "If I do that, will Shirahato come to school?"

Thus, the teacher who turned into a girl and the angelic boy started living as classmates at school. A traumatic story of sperm milking, of a transsexual teacher who cares about her students and a mentally unstable boy.