Help me find this short bl story

It was a short bl I believe, it was about this village and this demon was attacking this village. The main guy (I forgot if he’s the top or the bottom) ends up finding this demon and I think they fuck? Then one night the mc sees his dad going into his like shed and the main guy peaks in and sees that the towns folk are having SA’ing the demon. I’m not sure what happens next but I think the main guy frees the demon?