Takuma Yuba

Takuma Yuba is the captain of Yuba Unit one of the eight candidates for Fūjin.

Personality
Yūichi Jin referred to them as "Yuba-chan", implying they were friends, as well as that Yuba is female.

Border Enlistment Arc
Yuba is mentioned as one of the 8 candidates for Fūjin by Jin.