Kekkaishi, Vol. 20

When a number of holy sites are attacked, the shadow organization suspects Yoshimori's mother is responsible, and sends an investigator to visit Yoshimori's family. Angered by the accusation, Yoshimori nearly attacks the investigator's companion, Rokuro Ogi. Meanwhile, Ichiro Ogi, Masamori's archrival, lures Masamori to one of the holy sites...