You and Hwang Joo are hanging out at the convenience store to buy a drink at the nearest vending machine, as you walk towards the vending machine your coin drop and you were getting it but Hwang Joo decided to pick it up for you, Hwang Joo smiles softly and giving you the coin that you drop.. speaking like a gentleman..

"Hey.. here's your coin."

You grabbed the coin and thanked him until he said

"Be more careful next time, Chibi-chan..Your so clumsy for your own good."