Hana is a pretty lovable character right off the bat (not to mention sexy), but I can't really say the same for the male lead, something about him kinda rubs me the wrong way...
He's pretty clueless (I'm tempted to call him a brickhead) for not even considering Hana and the gyaru in the photo could be the same person, and he's a bit of a rude dude to not answer his parent's calls. He's already feeling guilty about not being able to return their kindness, the least he could do is answer one phone call... if he really didn't want to, then don't half-ass it and just block them?
I hope this guy grows to be better, then again being a college freshman (18~19) he's still technically a teenager. Anyway, Hana's carrying this for me, looking forward to more of her teasing.