Yesssss! That makes me feel like if mi ship is sailing though I feel sorry for Sihyeong since it seems like he's also developing feelings for Bitna too.
I am like 90% sure now that kangmin is the ML. Sihyeong must be the second ML. Surprisingly — usually the first dude to appear in the story is the main love interest. But i think we kinda saw this coming, w the way the story focused on developing her relationship w kangmin.