Minwoo makes a plan with Joo Hyuk's friend to make Maru jealous; while Kim An's friend continuously brings trouble into his life.

Maru gets irritated by Min Woo's every move; Kim An is absent from class for no reason which leads to worries.

A misunderstanding leads to Sung Min and Joo Hyuk separating; Maru and Min Woo share some good news with Lee Hyun.