I love trash romcoms. I love incest in manga. This ain't it. The pacing is all over the place, the characters are ?????, the writing is a trainwreck, in some chapters I had to doublecheck to see if I missed any chapters. This manga was so bad it took my review-virginity just so that I can shit on it. And let me tell you, I've LOVED some objectively bad mangas, like, just look at my manga list. This doesn't even qualify for guilty-pleasure. Spoilers (this is practically the entire story so far): MC and his sister are very close. They love eachother a lot. They even kiss. Their parents tellthem that they're divorcing, and that they're actually step-siblings.
(now known)Step-sister moves away to countryside.
MC gets together with a classmate that was a friend of both his and his step-sister's (with the the step-sister knowing about this relationship and agreeing to it as long as it's what the MC wants) to cheer the MC up
MC has sex with his girlfriend, while still worrying about his step-sister.
He drives a scooter for 7 hours straight to the countryside to bring his step-sister home. They kiss a lot.
MC's dad sees the MC's girlfriend and we find out that it's actually the MC's blood-related half-sister, born from an affair of his dad.
Girlfriend actually knew about this but hid it from the MC cuz she's in love with him.
Now comes the thing that made me drop it: The MC's colleague from his part-time job offers him to have sex with her to cheer him up. He refuses. And then in the very same chapter, a friend of the step-sister who the MC had been tutoring asks him to have sex with her and gets on top of him. What??