At first, Kumashiro was reticent to work with the Twin Star Exorcists due to Benio being the sister of the traitor Yuto Ijika, but after Benio save him from Moro's attack, he sees Benio's sincere intentions. Later he helps restrain the Basara while Rokuro and Benio destroy the Dragon Spot.
Powers and Abilities
Kumashiro seems to be an exorcist of average power.
- Shibaku-ho (止縛法 Shibaku-hō?): Kumashiro uses a charm to summon an energy snake to bind and restrain the target.
- The surname Kumashiro means "god" (神) (kuma) and "rice plant" (稲) (shiro).