Her theme color is purple, or lilac, and blue (sometimes). She has a casual outfit, a blue vest with a light blue shirt underneath. It has also a star design which is color blue as well. She has light blue hair that formed up a side tail with a blue rubber band. She also has white shoes.
- Her name Yasumi is a pun of the word oyasumi, meaning good night.
- Her surname Sugoi means "amazing".
- She cannot choose her theme color yet, until everyone notices she is purple or blue, not lilac.
- Her favorite days are nights, but she likes mornings more.