Sadakuni Nagao

Sadakuni Nagao (, Nagao Sadakuni) is a member of the Uesugi Bushi's black corps.

Powers & Abilities
Tamekuni soul color is blue. He has the title of Blue Sword, third grade.

Trivia
He and Tamekuni Nagao are probably related: they share a similar appearance, the same surname and in both of their names there is the kanji (国) (kuni).