Sim Hyun-seo

In 2001, Lee Gyeong-hwan and his mother move from rural Yeongcheon to the city of Daegu to leave behind a broken marriage and hurtful rumours. Reticent and shy, he struggles to acclimatise but his seatmate happens to be Jae-min, the cool class president who takes Gyeong-hwan under his wing. While they quickly bond over a shared love of Japanese culture, particularly the music of Globe, Jae-min's affectionate and open attitude allows Gyeong-hwan to relax and reveal his feelings in a world where he must hide them.

Yuwol, who is dancing all the time, has been considered to be the main culprit behind the dance virus at his school. The teachers calling for order begin to trace him.