If Hwa didn't have lighter hair I would totally mistake the Ryu twins. D:

They have the same hair style, same pointing dimples, same nose (Not hearable here, but their voice is also really alike; laughter, speaking/singing/rapping voice.), it's only that Hyo's eyes and her hair colour are different. Also, Hyo has a spot under her eye, while Hwa's lips are way more kissable. >w<
But now they are really different; Hwa let her hair grow while Hyo cut hers as Hwa did a year ago.

How about I marry both of them? Both are my biases, both really pretty, their mother would be grateful to give her daughters away that soon and I would treat them fairly. My bed is huge, but I would ask HyoYoung to spend the nights on the floor so I can cuddle HwaYoung all night long without feeling too quilty. :3
Okay, I sound totally i and pushy, sorry. D: