I read somewhere that she isn't the real sister. Wasn't she a mermaid that saved young ML blue hair when he was out drowning. Then she became human to look for him? (?) something like that. There's a back story for that. It just happened she forgot and he became a pos growing up, and also happened that she became his fake sister.
Or the webtoons here mostly from lez*in is disappearing? Dude..
heyo just adding to this, mangago has started hiding stories that are popular so the creator wont see it!
if you want to find something and cant see it, you can do the following:
— search the full name on the search bar, instead of clicking the suggested one, click enter and then click the manwha/ manga.
— as well, you can always ask for help in the questions and someone can find it!
WHAT DO YOU MEAN SEERE DIED? I Was casually scrolling giggling like a food from their love and suddenly HE'S SHINING IN THE CAR..?!!!!!