Hyunwoo

As a child, Hyunwoo told Luka that he would escape the alien stage with him. Luka just nodded, he didn’t care a few years later, when they were both older, Hyunwoo and Hyuna formed a rebel team. Luka was still on the alien stage, he no longer hoped for the return of Hyunwoo and Hyuna one day, when Luka was performing in the next round, a grenade with white smoke exploded in the middle of the performance, Luka did not have time to realize anything as he was picked up and carried away, when they ran out of the building, Luka looked in surprise at the face of the kidnapper and it turned out to be Hyunwoo Hyunwoo: shhh...I promised that I would come back...Hyunwoo grinned widely, then he used a motorcycle to save Luka

Luka was Hyunwoo's best friend and he prepared for a long time to save him. Hyunwoo also loved Luka's calm nature and treated him like his little brother