Yumi Fujiki is the daughter ofand . In , she goes under the username Cyberse Angel.
Yumi looks largely like her mother with their similar light brown hair and eyes, the most notable difference being the faded-blue highlights at the tips of the former and the rather larger fringe of the same color falling over the right side of her face. She usually places a small green clip on her left temple so that the eye on the same side is not covered, as well a green band to hold up two blue locks on the top of her head.
Like her parents, she tends to wear her school uniform even when outside it. She often has it a little messy. Her socks are much shorter than Aoi's, barely going above her ankles, and she does not include the light-yellow jumper nor the pink heart-shaped tie clip that are usually seen in the female version.
In her Cyberse Angel costume, she wears a form-fitting full-body suit with light-blue lines running all over it, similar to Playmaker's. It also features many "cybernetic style" traslucent flaps lined with circuitry patterns that form a skirt around her waist and wings behind her back. Also, her hair growns much longer, voluminous, and wild; reaching her waist as well turning into bright blue with prominent yellow spikes. Finally, her right eye (the same one hidden by the fringe) is covered with a decorated metal plate vaguely similar by the one worn by the, while the left one becomes light blue.
Much like her parents, Yumi is a lone wolf who tends to stay by herself most of the time. She doesn't exhibit stereotypical traits of neither gender, she seems to not care much about anything in particular.
The "mi" part of her name is represented by an outdated kanji for "blue", representing the many motifs of her parents based around that color.
Yumi uses a "Soultech" Deck, a theme of LIGHT Cyberse monsters.
- "Come, the circuit that delivers the wishes for the future to heaven!"
- — Beginning a procedure —