
Definitely agree with this one. I’m relatively close with my siblings and I remember when we went on vacation to the US, I asked for a kiss on the cheek from my brother and sister for a picture and people literally looked at us weird.
I definitely don’t see anything uncomfortable with this (just yet I guess,,,,, because the story hinted that the brother is a major yandere w/ the poisoning and stuff so maybe he will become obsessed with his sister to the point of no return)

Ok.. I guess haha to each of its own but there are definitely romantic undertones in THEIR relationship want to admit or not you would've thought he was the ML if we didn't already know who he was. I just find it weird wanting to romanticize a sibling relationship. My opinion. No other isekai historical manhwa has a sibling relationship like this.. this definitely isn't the norm..
Im trying to tolerate but The brother sister relationship feels gross and so touchy feely.. reading the comments make me feel like I'm the abnormal one here.. and then her demeanor makes it seems like she knows what she's talking about and whats she's doing but her actions /when she talks i get so confused and im like ???