伊草エリカ

The protagonist of Bokuhime Project, a young man named Minato who infiltrates a school for refined young women to investigate an incident involving his sister, disguising himself as a girl and enrolling as a female student under the identity "Erika".

He is polite and has good manners, and enjoys housework, and specializes in cleaning and self-defense. Since fending off a pervert at the school entrance ceremony, he has been popular throughout the school as the "Battle Princess", and is adored by his classmates as "big sis".