Kaoruko Awata

Bubble Girl is a Pro Hero and sidekick of Sir Nighteye.

Quirk and Abilities
Perfume Bubble: With this Quirk, she can make bubbles filled with aroma that she had smelled at least once before! She can make both sweet-smelling bubbles and foul-smelling ones. When she’s too nervous, she produces very unpleasant-smelling bubbles that it’s self-destructing!

Trivia

 * Her design comes from the winner of a hero design contest for fans rather than being one of Horikoshi's own: http://www.pixiv.net/member_illust.php?mode=manga&illust_id=59826475.