Oni no Ou to Chigire - Chapter 1 Pg 24

He would mix sugar into all the food, or stick bugs in their clothes and other childish pranks. Tokimori honestly thought, serves them right! He was thankful to Yato who would get revenge for his weak self. However, when he was responsible for major injuries by pushing people down from the top of the stairs, or pushing them in front of a running car, and they had to go to the hospital, he got scared. He was able to easily harm humans for Tokimoris sake, and couldnt care less even if they died from their own misfortune. That cruel thought surprised and frightened him. No matter how close they became, no matter how loyal he was to Tokimori, no matter how much he smiled with an innocent face that wouldnt hurt a fly in front of Tokimori, Yatos true nature was nothing but a demon. He was unable to understand the reason for Tokimoris fear. He had desperately stopped Yato, telling him he didnt need to avenge him anymore, but the angry demon didnt get it. It wasnt until the heads of the family had come out to do an external investigation of the situation that he finally stopped. The heads of the Yase family that consisted of numerous demon masters who possessed demons for the past thousand years, acquired countless treasures and mystical medicines connected to demons. If they got out of hand, and the demon master was unable to control his demon servant, several demon masters could come together and perform an inherited technique to seal them into an orb called the Demon Sealing Orb. A Demon Sealing Orb with a demon in it was heavily guarded in an old mansion in Kyoto that no one was allowed to enter. They were not to be released until they received permission from the master of the head household. Even Yato had been threatened with being sealed into the orb if he had gone even further.