Uno is a tall young man with close-cropped hair and glasses akin to swimming goggles that block his eyes. His uniform is mainly black with an olivedrab color for his shoulders and chest pockets. The Kusakabe squad logo is located above his left chest pocket, and his uniform has a white stripe running down the sides, as well as a white stripe around the zipper.
- Uno and Saeki first appeared in Chapter 180, without it being revealed who was whom; their names were matched to their appearances in the World Trigger calendar.
- According to volume extras he likes:
- Savory noodles
- According to his Volume 24 character profile he has the side effect of "Precise Body Manipulation," but due to its wording it is unknown if the author is joking (see: Yōko Katori).