- She's 9 in canon
- Her high is 4'4
- Likes to do measurement with apples
- Scared of the dark
- Can't sleep unless Kiyoteru sings to her
- Was adopted by Mr.Hiyama in kindergarten
- Her biological parents were drug addicts
- Is easily influenced by others
- Doesn't understand the concept of marriage
- Loves "borrowing" her dad's clothes
- Bullied for being a "teacher's pet"
- Yuki has a habit of calling most Vocaloids "big brother" or "big sister"
- Has a knack for making chocolate
- Is a master at giving puppy-dog eyes
- A cute little schoolgirl
- Really sweet but has a mischievous streak
- Is determined to one day beat Miki at Monopoly
- Tries to be friends with everyone
- Wants to become a doctor when old enough
- Super bouncy
- Always curious and loves adventure
- Likes to shop a lot
- Touches EVERYTHING
- Piko fascinates her to no end
- Loves eating anything apple flavoured
- Likes bugging the Crypton Vocaloids
- Thinks Rin is the coolest person
- Is really smart once she gets serious
- Has the ability to speak to ghosts
- Can see/talk to any magical being
- Will do anything to help out people she cares about
- Is very protective over Kiyoteru
- Pretty good friends with Len
- Yuki sees Rin as an idol
- Starts sentences with "When I'm older"
- She's a day dreamer
- Got her mischief from Rin
- Has fun "pranking" Kiyoteru
- Kiyoteru always knows but plays along
- Has the most adorable laugh
- A really good little chef
- Mild fear of windows from seeing a horror movie
