Scarlet Ikaruga Wisteria

She is the protagonist's grandmother's adopted daughter and a senior student, one year older than him. She is an unparalleled beauty with striking blonde hair and blue eyes.

She always wears a maid uniform outside of school, and is quiet, so it's hard to tell what she's thinking. As a maid, she cleans and manages the dorms, but her cooking skills are awful. She invites the protagonist to her dorm to help her, and she calls him "master" and relies on him.