hari and eugene aren't rlly brother and sister tho... and the author is making it even more clear.
She only spent 2 years in that house and she isn't even blood-related to him. The only thing they have in common is their family name, which could easily be changed.
Yes, she said that in reality she's spent more than 20 years in that household, but at the time she hated all of the brothers and it was hell for her. In her "new/second life", she was only there for 2 years. ALSO, look at this from Eugene's perspective. This girl who is close to his age suddenly comes and lives with them. He doesn't take much interest at first, but as time went on, he found himself looking out for her more often and takes notice of her. *She was also the only one who comforted him when he needed it most* AND not once has he seen her as a sister in the two years that they were all together.
Does this not sound like every shoujo manga/manhwa/webtoon ever?!
Bottom line: it's not incest lol
╮( ̄▽ ̄)╭
btch i used to rlly just see all of them as siblings and used to ship JohanxHari. But come onnn, why d author gotta do dis?? the scene of hari and eugene is just so ASGDLFBGKL. Btch im lowkey shipping them, which i rlly shouldnt be doing, but i am. dey cute gurl