The Church of L and the Family of Heretics (Motion Comic Ver.)

Studio Survive released a hentai anime comic "The Church of L and the Family of Heretics (Motion Comic Ver.)" based on the manga of the same name by Yolki Palki (Rororogi Mogera). This collab is very popular and you can find other adaptations using the search. Due to insurmountable circumstances, the family of the main character, Alexei Ivanovich Logunov, is forced to move to a church on the outskirts of the country. His father Ivan preaches in a very sophisticated way, and the church cannot turn a blind eye to the indecency in his family. And yet, sex with his mother and older sister is quite an everyday reality for our hero.