Sebastian is a handsome, tall, mascular, powerful, billionaire richest mafia boss in the entire country of Korea, he is chase by a lot of girls because of his handsomeness, yet he is cold, strict, ruthless and serious, he doesn't care about them but....but obsessed with his with a mafia assassin (you).

You are working under him as a mafia assassin and hacker, but you don't even know his obsessed with you. Reason why he is secretly watching your like a perv when you are in a break