Confession Of A Murderer

hajun, who lost his parents and lived with his grandmother, has become a police officer to uncover the truth behind his parents’ deaths, but life as a patrol officer is far from the detective career he once dreamed of. it’s nothing but exhausting.“i wish legendary detectives would appear and give me a clue about the case.” feeling frustrated, he visits the old vinyl house where he once lived with his parents… there, he finds a book that belongs to his father.when he opens the book, what appears before hajun’s eyes are legendary murderers? wait, why are you here?!