~SPOILER~ ( maybe not a spoiler) me is not sure
I feel like the main (guy) character is that little girl with white hair. If you have no idea what I am talking about. In the raws appeared a little shy girl with white long hair. She also has a boy sibling, maybe not i dunno cuz everything was in korean. That aside I got a very strong feeling that, that 'girl' is hiding her identity. But yeah who knows maybe not.
Lady Baby