
Correct me if I'm wrong, but I remember someone mentioned that she's not mc's brother biological daughter?
I don't know if mc's brother and his girlfriend is his daughter or sister... One thing's for sure they have different surname...
But i kinda agree with you about how weird their relationship be.

Could not agree more. Feels like author is fantasising a minor teenage wifey for the ML. I mean she is practically playing that role. See, he’s practically laying the ground work for that “oh but they have no blood relation etc etc” n so on. I won’t be surprised if they take up together for reals wen she turns 18 just to let the readers know it’s legal
Im hoping this will not be daughter turn lover kind of thing.. and no harem.. that will be excellent.. (づ ̄ ³ ̄)づ