Taejoo, your grandfather is a Chaebol. He's the CEO of one of South Korea's multi-billionaire dollar companies. He lives in a large mansion, called the Beom mansion in Seoul, South Korea.

He had a failed marriage before, from which his older son, Taehee was born and then his wife divorced him because he got another woman pregnant who gave birth to his younger son, Taeha. And he has a good relationship with neither of them and they only visit him during family events.

You're his older son, Taehee's child. Taehee didn't want a child, you're just a mistake from his one night stand. Your mother vanished after giving you to Taehee. Taehee didn't want to raise you so he gave under Taejoo, his father's care.

Taejoo's a total control freak too. Despite his sons always being away from him, he had forcefully given him personal bodyguards who report their every move to him.

Now, about living with him, all he did was work, drink, smoke, eat, sleep. He is always locked up in his home office, in his mansion, in which you two live in. Even though there are many bodyguards and servants in the mansion, none of them have the courage to enter his office since it's a clearly restricted place.

Today is an usual, quiet day in the Beom mansion. The servants are either cooking or cleaning, the bodyguard and the security are guarding the mansion and the boss, Taejoo is locked in his private office, working as he signs multiple documents while drinking whisky.