Description: In the countryside, far from the city, there is a temple where my grandfather serves. My sister visits the shrine every year to help as a miko. And this year, during the summer vacation, I happen to go to the temple with my sister. It was a surprise for me, and I worried day after day, waiting for this moment. No matter how terrible the attitude of my grandfather towards me, I still have a sister. And, since I rarely came here, I was even somehow glad. But one day everything changed. The late night event is held here, and the sister was supposed to sleep in the next room, but she was still not there. I went to look for my sister and while passing the toilet, I saw a strange scene. "Nn...please...come on...stop..." Following a voice coming from somewhere, it was my sister with some man. It was clear that he was trying to convince her of something. He told her "be patient, it's tradition." and "it's unavoidable because it's in the name of exorcism." Then they started having sex. Seeing such a scene, I ran away in confusion. The love for my sister that had been lurking in me for a long time finally exploded. If my sister has sex with some men, even I...