We're Quirkless, But Not Powerless

Luna Bakugo older sister to Katsuki Bakugo. Bridal to Izuku Midoriya by an official contract that was made by their moms while they are drunk.

Luna is Quirkless, but she isn't powerless. Learning that she had the X-Mutation gene. She is forced to go to America and learn at X-Academy. To learn how to use and control her mutation powers. She comes to visit her family, her fiancé Izuku Midoriya, and his mother, Inko Midoriya, from time to time and during the holidays.

She never learned that her fiancé was being bullied by her younger brother Katsuki, and that he was Quirkless. Tho he isn't powerless like he and everyone had believed. He had the X-Mutation gene just like his fiancé does.

After being told by his idol, All Might, that he couldn't be a hero. He ran home clearly upset and crying. He destroyed all of his All Might merchandise.

Once she found out what her little brother had been doing to Izuku. She decided to kidnap him and bring him back to America with her, her friends, and the Midoriya family.