Uno has short hair and glasses that block his eyes. His exact height is unknown but he appears to be just taller than Kazuma Satomi. 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 appearance in the World Trigger calendar.