Childhood friends Eunha and Seungmin used to be inseparable until Seungmin started running with a bad crowd in middle school. That marked the end of their friendship, or so Eunha thinks until she runs into Seungmin again in college! As if that wasn't jarring enough, his appearance has done a complete 180, and Eunha can't figure out why. Everyone thinks the former delinquent is a quiet nerd because of the way he dresses and behaves. But once Eunha starts talking to Seungmin, she gets the feeling that he hasn't changed as much as his glasses and plaid flannel would suggest...