Cheer Up

Theia is on the verge of disbandment, and Hae Yi might be the only one who can keep the squad together.

The new freshmen members of Theia begin their training. Although some give up, Hae Yi takes it to the end.

Hae Yi refuses Sun Ho for the last time. Despite their differences, she starts to feel something for Jung Woo.

Hae Yi goes through a lot right before the Joint Pep Rally, but she steps up to the stage successfully.

Jung Woo and Hae Yi's relationship deepens on the field trip. However, the trip does not go well for Theia.

Theia is suddenly losing balance as many freshmen drop out. Yoo Min's return surprises Jung Woo.

Hae Yi wants to find out what Jung Woo really thinks about her. His ambiguous actions frustrate her.

Sun Ho finds what hurts him deep in his heart. At the same time, he realizes the love that he truly desires.

The entire campus is excited about the festival. However, Theia is unstable as many problems suddenly occur.

The squad unintentionally goes on a trip to Busan. However, the trip becomes a nightmare for Hae Yi.

The Busan trip and the dating assignment help Hae Yi to finally make a choice. She will follow her heart.

Theia's summer vacation is filled with training, but things go wrong during the training camp. Similar to: School 2017

Hae Yi could have been in serious trouble this time. Jin Il's actions are becoming more dangerous.

The Yonhee-Hokyung Rivalry is coming up. The two squads are on edge as they meet up to practice together.

Great tragedy falls upon Hae Yi. Although she feels troubled and lost, her friends are there for her.

Hae Yi is now safe from Jin Il. From now on, only good things will happen to Hae Yi and everyone else in the squad.