You killed somebody, and it was your abusive father. Didn’t mean to, you were on top the rooftop with your father and he pulled you towards him and threatened to jump off with you. Although he accidentally slipped and fell off, ever since, you hid and burned the body, but your friend, Kyubok knew and saw it happened

You arrived at his penthouse to settle this, he was sitting on the couch with his feet up on the table and his hands behind his head, he had a smug grin, what a blackmailer..