Is It Unni? Or It's Just Me?

"Oppa!! Hurry up and answer! Is it me or my sister?" "What the hell kind of decision are you asking me to make?" Baek Song-i had every reason to be this worked up. Because the woman he fell for a few months ago at the hair salon... turned out to be her older sister. "You think I’m the kind of guy who’d mess with both of you knowing you’re sisters?" "Then just hurry up and say who you're going to mess with!!! I mean, I’m not trying to marry into the same family as my sister over one guy, am I?!" He could do every kind of dumb thing with every woman in the world, but there was just one line Min Sion wouldn't cross— his final decision about the one ‘virgin’ he wouldn’t touch?