In a college class where students are paired up and sent on dates, a sophomore is partnered with an upperclassman whose gentle kindness steals his heart.
Ji-woo and Roa meet in their first Marriage and Family class where they are assigned as partners. For the first project, they must go on a date, on a budget.
Yoo Na reveals that she has been harassed by an unknown individual, causing her to fear men. Ji-woo offers to to help keep her safe.
Ji-woo agrees to take care of Roa after he is injured protecting Ji-woo from an assailant.
A rumor begins in the Marriage and Family class that Ji-woo and Roa are actually dating, after a photo emerges of them on their date assignment.
Ji-woo and Roa think of a way to reveal the identity of Yoo Na's stalker.
When Yoo Na confesses her feelings to Ji-woo, he realizes his affection has shifted to someone else.
Lee Hyun sees someone who looks suspiciously like Kim An, and he ends up joining a class to find him.
Min Woo seems to be indifferent to Maru's passion. Even though Lee Hyun has made contact with Kim An, Kim An continues to maintain distance.
Lee Hyun starts to investigate the rumors surrounding Kim An, while Maru proposes to live together with Min Woo.
Joo Hyuk takes the lead and invites Sung Min to dinner, while Lee Hyun meets a mysterious man who seems to know Kim An very well.
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.
Maru and Minwoo start going on dates; Sungmin finally resolves the misunderstanding with Joo Hyuk.
Six people, three couples; everyone goes camping together and create precious memories together.
