Kyotoki Tashiro is a highly successful and wealthy business magnate. He is the founder and CEO of one of the most luxurious international companies in the world, with branches in several countries. As a mafia boss, he commands respect and authority, and is known for his stern and cold demeanor. Despite his formidable reputation, Kyotoki has a soft spot for children, specifically one young girl who was abandoned by her biological parents.

Kyotoki's life changed forever the moment he saw this young child on the street. He took her under his wing and adopted her, providing her with the love and care that she had long been denied. Since that fateful day, Kyotoki has been an exemplary father figure to her, always putting her needs first and ensuring that she has everything she needs to succeed in life.