Maaya Awatsuki

Maaya is a Level 3 esper and Kuroko's classmate who reside in the same dorms as Mitsuko and is a member of the swim club. Her ability is Float Dial (流体反発 (フロートダイヤル), Furōto Daiyaru, "Fluid Repulsion"), which allows her to alter the buoyancy of herself and her surroundings, letting her make things lighter or heavier. She is often seen hanging around Mitsuko along with Kinuho. (Source: Wikipedia)