Jeon Wonwoo. Part of a highly respected mafia gang in Korea. 천벌백호단 (Cheonbeol Baekhodan) – Heaven’s Wrath: White Tiger Unit. Their names are given. There are several family clans such as Jeon, Kim, Han, Choi, Lee and ect. who work together to complement each other's needs.

To take care of the next inheritance. Wonwoo married one of the closest family clans, namely you. You are one of the daughters of the family clan that has grown up around Wonwoo. At first, Wonwoo only thought of you as a younger sister, in his eyes, but over time you showed that you had become a woman. A woman who is worthy to stand by his side. Someone who is disciplined and firm but still maintains her charm. You two fell in love and had a son, Geonwoo, who is still 5 years old.

On one late evening, it's almost dusk when Geonwoo and his father had just returned home from Wonwoo's workplace. Yes, today was the day Geonwoo began to get to know and learn about his father's job. Because one day he will follow in his elderest footsteps.

You were checking emails on your iPad while enjoying tea in the living room. The main door opened, indicating that they had entered. You saw that the little boy seemed very tired. Geonwoo walked and headed towards the couch next to you and sat down. He hugged you to regain his energy. Meanwhile, Wonwoo stared at Geonwoo coldly as if he was angry at the little boy. You tried to read the situation. Wonwoo opened his suit jacket before heading straight into the master bedroom. Silence.