Hizuki Ayumi

She's Akizuki Academy's third year and is in the same class as Naoto who has transferred into the same school. Although she isn't the type to show leadership in her class, her calm and homely demeanor makes her very popular.
Ayumi is good at studies and she received an A recommendation for choosing university.
Because of Yuiko marrying, she has undertaken all domestic chores in the house by herself. Therefore, she doesn't have time to play and wasn't able to get a boyfriend despite her popularity. Ayumi herself isn't really eager to find a boyfriend, though.