WHO DID UPLOAD THIS HUGE SPOILER??????? LIKE WHYY

? What spoiler

I think the MIA 2nd brother ?? Maybe he's MIA because he will be someone who will look like a third wheel something HAHAHAHA

before the "safe non spoiler" family tree chapter, they posted a full on family tree for the main characters

I see : thanks !

Is this the spoiler?

Maybe~ Just my speculation based on the Family Tree. And Also another spoiler is the revealing (based on the family tree) of the "past relationship" of Jaeho and Rona Noona (Older Sister of Uke (Ian))

WOAH, HOLD ON. As in romantic relationship????

Yes, try giving it a look again. There's a "small red line" on the line connecting Jaeho and Ian