Rival x Me

Lee Dan is a not-so-popular K-pop idol. Unlike his beautiful appearance, he has a fierce temper. Because of his anger, he kills another K-pop idol named Kang In Woo also known as Leo, a member of a famous group. This disturbing event shook the entire country of South Korea. Lee Dan is sentenced to life in prison, and the band he was a member of disbanded.

Unable to bear the weight of his actions, Lee Dan commits suicide in prison. However, when he wakes up, he is back in his familiar room, with everything seemingly unchanged. He has been given a second chance at life, but the memory of the event that darkened his entire existence has been erased from his brain. He only knows Leo will be killed by him but doesn't know why and where.

Will Lee Dan be able to change his life while following the system's instructions? Will he be able to uncover the truth behind Kang In Woo's death? And how will things unfold with Leo in this new life?