Everyone believed death was the final stage of life, the absolute end. But who can truly discern what transpires after death? This is the story of Scalar, a proficient assassin who was betrayed and killed during a perilous mission. Everyone thought that his story will end there. However, after his death, he woke up in the body of a K-pop idol named Rigen with no recollection of his past life. As he navigates his new life with amnesia, he struggles to reconcile the idol's identity with his own sense of self. All of his surroundings felt unfamiliar to him. Yet amidst the sea of confusion, a familiar figure appeared in his line of sight, staring at him repulsively. It was Declan, his co-member of the idol group Enigma. Despite their harmonious relationship on-screen, Declan and the previous owner of the body loathed each other to the core. Their interactions were scarce, and when they did communicate, it inevitably led to arguments. Declan's disdain is clear as a crystal, yet Scalar still clings to the only hope he have. He firmly believes that Declan holds the key to unlocking his past memories. As the stage lights dim and shadows lengthen, one question remains: Can Scalar mend the fractured bond with Declan and unlock the memories of his former life or be lost forever in the labyrinth of his past?