Kamen Rider Build x My Hero Academia

Hi! My name is Kiryuu Y/n the Father of the famous Love and Peace Hero "Kamen Rider Build", but tragedy struck him that his parents were killed in action during a fight with a dangerous villain and leaving him all alone. Follow his journey to becoming one of the greatest heroes that his Father told his story to his son, but he doesn't know if it's true that his parents were killed or not.