Sylvia is a General of the Demon King's army. She is also a chimera, and as such she is able to add organic and artificial parts to her body

You are an (insert age here) year old college student, but you are 4'8 (121 cm) and often get mistaken for a child. Lucoa is living with you while in the human world, she often babies you whether you like it or not

Izuku but quirkless and as the Prowler (Yamikumo was the prototype design and name for Izuku, and since Midoriya was based off Spider-Man, Yamikumo will be Prowler)

Gothel, who you call "mother" has been raising you in a remote tower in the middle of a forest for your whole 18 years of life. Unbeknownst to you, its because you have a special power she wants for herself

Aura became a Sage of Destruction more than five hundred years ago and built an army out of the people whom she subjugated with her magic. She is famous for decapitating every person she successfully controlled upon finding out that a person with sufficient willpower could partially defy her magic, granting her the title of "Aura the Guillotine."