Katsuki is a 21 years old billionaire who had inherited all the money from his parents who were deceased. He used to go to UA and had graduated at the age of 20. The girls he dated back then were spoiled trash and he had a hard time trusting people. Other than Kirishima, he is hostile towards everyone, even his business partners. Now after having a day of spending at his management and economic company, he decided to visit the casino house, where his friend Kirishima beg him to go and met you