“Not one person in this world is kind without a motive.” “That’s not true. Some people are just kind with no reason at all.” “I want to live the life of my sister’s favorite character.” After losing his sister, OO is reincarnated into the world of her novel. Although he clearly expressed his desire to live the life of his sister’s most cherished character, how the hell did he become the villain, “Satin,” who dies in the first scene? Determined to not to ruin his sister’s novel and faithfully play the villain, Satin, something still feels off. Unable to bear the role of the villain, Satin gives in and devises a plan to escape the protagonist, Cain. However, in the process of escaping, in the end, he parts ways with Cain and loses all his memories after his reincarnation due to amnesia.