Eun-gyeol and his family move into a new neighborhood. He meets a man who offers to teach him how to play the guitar,...

Eun-gyeol tries his best to quit music, but it's not easy for him to do. He gets scouted to join SPINE9, an indie ban...

Eun-gyeol gets stuck in 1995 and doesn't know how to return to the present. What's worse is that he meets his young f...

Eun-gyeol encounters Se-gyeong in her teens and learns a few things about her life that don't make sense in the futur...

Eun-gyeol resolves to stop the accident that caused Yi-chan to become deaf and clings to him, vowing to teach him eve...

Everyone is confused at Se-gyeong's return, especially Eun-gyeol, who sternly warns her to stay away from Yi-chan. Ho...

Chung-ah wakes up, realizing she's lying on a hospital bed, with the revelation that Yi-chan carried her there on his...

Eun-gyeol wakes up at the house of the Jinsung Family after the accident. He finds out that Chung-ah was the daughter...

Astounded by Eun-gyeol's candid love confession for Se-gyeong, Yi-chan retaliates with a spirited punch. Eun-gyeol's ...

Eun-gyeol can't hide his feelings for Se-gyeong and ends up kissing her. Chung-ah's stepmother calls Eun-gyeol separa...

As the festival draws near, the boys are intensely focused on fine-tuning their band performance. Meanwhile, Eun-gyeo...

Eun-gyeol successfully cancels the rehearsal and prevents Yi-chan from getting seriously hurt. Chairman Yoon extends ...

As the enchanting glow of their festival fades, Eun-gyeol and Eun-yu acknowledge the depth of their feelings, hoping ...

Eun-gyeol and Se-gyeong realize that they’re both time travelers. He learns that Se-gyeong also had a mission to acco...

Eun-yu drops clues about Yi-chan's real hearing loss incident to Eun-gyeol. Knowing that Eun-gyeol tends to shoulder ...

Yi-chan gets hit by a car and loses his hearing. Master tells Eun-gyeol to go back to his time, but he refuses, deter...