(COMIC1☆15) [AquaDrop (Mikami Mika)] Oyasumi Sex Shidokuban

Let me try and guess as I do not know Japanese. She adores him since a child and he loves her. He assaults her and she lets, faking a sleep. She later, at some point, shows him she is awake. They said "I love you". She is found with a box of pills to avoid pregnancy. He sees it and now have absolute certainty she knows of his assaults and that she likes (loves) him back. They proceed with more "fornication".

If anyone wants, there's a animated adaptation. I've already watched and it's great.

recognize this plot from somewhere