Yuki Bones (born July 4, 2027 in Osaka, Japan) is one of the adoptive daughters of Louie and Joanne Bones and the vigintuplet sister of Takumi, Ayaka, Kenji, Mao, Ai, Yoshi, Kenta, Yuta, Kouki, Sakura, Sota, Ku, Megumi, Miyu, Daito, Tomoyo, Ren, Rina and Momoka.
Yuki is petite with light skin, black-brown hair with bangs and brown eyes. She wears a purple dress, pink tights and purple shoes.
Yuki is sweet and gentle.
- Father: Louie Bones
- Mother: Joanne Bones
- Brothers: Takumi Bones, Kenji Bones, Yoshi Bones, Kenta Bones, Yuta Bones, Kouki Bones, Sota Bones, Ku Bones, Daito Bones, Ren Bones
- Sisters: Ayaka Bones, Mao Bones, Ai Bones, Sakura Bones, Miyu Bones, Tomoyo Bones, Rina Bones, Momoka Bones
Her full name is Yuki Kitty Bones.
Her favourite food is cupcakes.
Her favourite drink is lemonade,
She likes drawing and singing.
Yuki marries Richard River and has a son called Gary. She works as a waitress.