Mochida Yuka

Likes: Rock candy and peach juice
Dislikes: Raisins
Hobbies: Collecting scented beads

Satoshi's sister. Though she's an eight-grader at Kisaragi Academy Junior High School, she looks and acts much, much younger.
In the Mochida household, Yuka's always been the 'princess', generally getting her way and thus never really shedding her childlike behavior.
Despite this, she yearns to grow up, often attempting to act older or behave than she is -- which sometimes gets her in trouble.