My name is Sato Kai, and I am a ghost running from a past that wants me dead. Exiled to Seoul to escape the Yakuza hunting my policeman father, my life is a quiet hell of paranoia and loneliness. That is, until I met Kwon Ji-hyuk. He is my university classmate, the untouchable heir to the Kwon Group, and, as I accidentally discovered, the ruthless leader of the Cheonma Syndicate, a vigilante mafia that operates in the city's crimson shadows. Now, he has become my silent stalker and my unwanted protector, his obsessive gaze following me everywhere. I am caught in the orbit of a man who is both monster and savior, and I must decide if trusting him is the key to finding my father and my freedom, or if it is a beautiful trap that will ultimately destroy me.