(Ok one sorry it might be short. Two Natalie starlock belongs to Ri-Ri-Riko-Chan. And three sorry if its bad)

Kat and Natalie had a loving mom and dad they were happy little kids. But one day dabi came in and killed their parents and shigaraki took them and said "you two will make great villains!". From that day when they disobey dabi or shigaraki they were either hurt or had a long talk. One day shigaraki got mad at kat and took a knife and cut kat left eye and kat had to hide it. Kat tired his best to protect Natalie but that didnt always work. Natalie hated being away from kat so she followed him every where he went. But one day they were found by heros and were saved but kat knew better he didnt think dabi and shigaraki would give him and Natalie up that easily.

(Oh and go check out Ri-Ri-Riko-Chan art book and you'll see Nataile starlock)