Ukami the Fracture

Stop me if you've heard this one before.

A girl suddenly emerged powers one day. Got kicked out of home. She decided to make the best of it. She became a Hero. Fought crime, fell in love, was betrayed, but keeps fighting anyway.

Her power "Illusion" allows her to play tricks on the minds of her foes, confusing them. Although she has a large range of tricks, her favourite ability is her namesake, "fracture", which to her enemy makes it seem like she fragmented apart into several clones of herself.
The one problem is, it's great playing tricks on the mind and all, but that doesn't actually take down the bad guy. Luckily, Ukami has learned martial arts just for this reason. Plus she just finds them cool.

It's noticeable that Ukami is very versatile in combat, and doesn't really need to rely on her powers to fight. They're very useful, yes, but she can also fight just as well without them.

Ukami has had a turmoiled and troubled past, but very rarely talks about it. The other heroes suspect it's to do with her sexuality and the emergence of Superpowers, but were never completely sure.

One thing's for sure, her insistence on the outdated concept of keeping her "identity secret" probably stems from a largely personal reason, rather than any need for privacy.

She loves cute clothes and basically wears them all the time.

Ukami was previously romantically involved with the Villain Neon Pirate, but broke it off after she was no longer able to stand Cici's crimes.