
Now that we've seen her side of the story.....the verdict is that "she's nosy and wanted to meddle in other people's business because she can't fix her own business".
Boy was I wronggggg to assume that she could've had good reason for doing that cuz her reason does NOT make up for her actions at all! Gurl, I get you were neglected as a child and that you're trying to find something to fill that void(if that's how she wanna put it lol) but that does not give you the reason to meddle in other people's affairs and drag them into unwanted situations because you want to decide what's best for them(in which she is deffo wrong cuz Mr. Kwon and Ho are grown men who can decide for themselves)
I couldnt say this back then in the previous chapters, but she crossed a boundary and her reason is not even valid or reasonable.
She's just homophobic I guess. And damnnn, who does girl think she is tho? Why she suddenly saying that she's not in support of Mr. Kwon and Ho's relationship....like, okay??
I'm so dissapointed bro...i thought she was going to be a good sport about it fr.

There are different possibilities of how Shirayuki will handle Haruki's sister.
Scenario 1: He silences the sister by plotting to kill her off.
Scenrion 2: He'll manipulate the situation if the sister ever snitches him to Haruki, and in which Shirayuki will use the sister to confuse Haruki by saying that her sister might have problems with him and that she's making up stories about Shirayuki.(which we know is a lie since he is actually a psycho lol)
Scenario 3: Shirayuki will find dirt on the sister and make her go to the other side(by psychotic and kill people as well). Like, Shirayuki will try to find people that the sister might have a grudge on and urge the sister to take revenge and thus the two of them will be put in the same situation(psychos who kill) and she will no longer be able to snitch on him since that'll put both of them in danger.
These are just possibilities lol.
Grandpapi can have it HAHAHAHAHA