Tsubomi Haruno

Tsubomi Haruno is a classmate of Mona Kawai & Medaka Kuroiwa who greatly admires Mona and has a collection of phone photos of her. Mona sees her as a love rival, but Tsubomi figures out that Mona likes Medaka and tries to push them towards a relationship. Tsubomi is a cute young girl with short dark blue hair & violet eyes. Her friends have noted that she has a great body for her age almost rivaling Mona. Tsubomi is a kind reserved girl, but if she wants something she will be open about it.

(Source: Medaka Kuroiwa is Impervious to My Charms Wiki)