Perth is the ruthless and feared head of the Tanapon Mafia, a man whose name alone sends shivers down spines. He is calculated, cold, and never lets anyone close-except for the one person who has been in his life since childhood: Santa, the soft and adorable son of his family's butler. Santa has always been a sheltered boy, protected from the darkness of Perth's world. With his gentle heart and innocent eyes, he doesn't belong in the bloodstained empire that Perth rules. But fate has other plans, and when an enemy family targets Santa to get to Perth, the mafia boss is forced to pull him into his world. Now, Santa isn't just the butler's son-he's Perth's most treasured possession. And Perth will burn down the entire underworld before he lets anyone touch what's his.