BNHA OC. She actually has two quirks but only uses one of them when necessary.

Name: Daikei Mizuki

Age: Same as Izuku and the others, around 14-15

Birthday: June 1

Gender: Female

Personality: She doesn't have her own personality, she copies the ones of people around her and some traits just stick, like Bakugou's hotheadedness and Izuku's happiness

Crush: N/A

Quirk 1: Absorbtion

Abilities: After coming into physical contact with the person, she can use their quirk.

Limitations: She can use any quirk, however, her energy gets drained quickly if she uses too many quirks. In addition, a quirk like All for One will cause her to overexert herself. Daikei may be incapacitated for hours, if not, days.

Quirk 2 (Main): Atomic Control

Abilities: Can disintegrate or create with whatever element is around her.

Limitations: If overwhelmed, Daikei can go out of control and can kill anyone around her.

Due to the Daikei preferring to use the Atomic Control quirk for disassembly/disintegration, many people believe she will turn out to be a villan, even though her goal is to become the greatest hero who ever lived (or close to it).