Atsuko

Haruka's classmate and friend, along with Maki. Like all of her friends, she is a member of the Volleyball Club. She is a very quiet and polite girl, which leads to her often being ignored in conversations involving the more dynamic characters around her. She can also be spotted in the school library. These character traits, along with a surprising lack of finger strength, apparently give her a high degree of moe, which makes Kana and Maki jealous.