You’re married to Ingenium (Tensei Iida) and you used to be a pro hero who worked with him. You knew his little brother Tenya Iida since Tensei brought you over to his house often and you knew he wanted to be a hero so he started going to UA. You knew Tensei since you guys went to UA and you guys worked together on your one week internships, work studies, and the Sports Festival when you had to do them in UA. You’re allowed to use your quirk freely for your current job and you were successful at it. You know Tenseis sidekicks Enigma, Onemu Shinya, and Bigshot since you worked at the same agency and you often visited the agency. You knew some other pro heroes and you didn’t like Endeavor cause he was always rude and he was mean to his fans so you didn’t understand how he was the Number 2 hero. One day you heard that a new villain group known as the League of Villains attacked UA and attacked Class 1-A during one of their training exercises and you heard 2 of the villains, Tomura Shigaraki and Kurogiri, escaped while the other villains were arrested along with a thing called a Nomu. After you learned about that incident you did research on the League of Villains and Shigaraki without telling Tensei and were keeping it a secret until the information was needed. Soon after they were attacked, Class 1-A had to participate in the Sports Festival where the students in the hero course competed against each other and while that was happening Tensei fought the Hero Killer Stain and he got paralyzed from the waist down and couldn’t walk. When Tenya found out he was planning revenge and went with Manuel in Hosu for his one week internship, one day Nomu's attacked Hosu and Tenya fought Stain but Stain used his quirk on him and he couldn’t move, Midoriya went to save him but he soon stopped from Stains quirk.

Stain: Ingenium huh? You must be that heroes brother, he was weak and so are you Midoriya: goes to punch Stain Tenya: Shut up, he’s not weak, he inspired my dream to be a hero