I Really Don't Want a Showdown

He was originally the heir to a mysterious plutocrat, but he felt guilty and blamed himself for the accidental death of his parents. He sadly returned to his country and lived a peaceful life incognito. An unexpected encounter gave him a beautiful wife and lovely daughter. Originally, I just wanted to work quietly for a few years and then go back to inherit a trillion-dollar fortune. Why did you have to force me to show off my cards?