Hi, I am finding for this particular hentai manga that has the following overview because I forgot and don't think I'm able to find the hentai manga again but maybe you guys might able to

the girl is in front of a door with 'demon' already has a girl on his stick asking for help. the new girl then taken in as a replacement or something and in the story after few years have passed, another girl is in front of the door again, turns out to be that girl is the daughter of the previous girl taken in and the mother, was drowning in pleasure of eternity sex there and inviting her daughter to come as well

I really wanna read this hentai manga again though