Cheer Up - Season 1 Episode 6 Yoo-min's Return
Overview: Yoo-min returns to the school saying that she has something left to do. Her sudden return is mysterious to everyone. Meanwhile, Theia is put in a tough spot as more than half of the freshmen quit after the release of the horrendous video. Hae-yi is also on the verge of quitting because of Min-jae’s proposal.