Haruka is Chizuru's classmate, who is friends with Takane. Like her friend, she is not skilled at sports. The two wanted to befriend Chizuru but had a hard time talking to her due to Chizuru's cool and aloof personality. However, after playing volleyball with Chizuru, she and Takane became friends with her. Takane and Haruka idolize Chizuru for her cool demure and Takane even wanted to give her the nickname "Chi-chan," only to find out someone else already has that nickname and Haruka shoots down every nickname Takane suggests. The two often give Chizuru usually odd gifts in attempt to see her "playful" side.
