From publisher blurb:
In its natural form, a Kishi has a snarling and salivating hyena’s face on the back of its head and a bestial bipedal body. Kishi are only summoned when mere murder is not sufficient revenge, and the complete destruction of an enemy is desired, a relished task for the narcisitic Kishi.
The Kishi are masters of lying with the truth, and all facts twist and bend to suit their chosen narrative. In this way, the devils can patiently undermine cherished beliefs and self-esteem. While this may incidentally claims souls for the denizens of Hell, these social predators simply take great pleasure in transforming strong-willed people into depressed, dependent husks.
Kishi carefully embed themselves into a target’s life as a friend or lover. From there they wear away at everything good within the target: destroying confidence, altering memories, and poisoning all other relationships. The victim grows increasingly reliant on the devil, and certain they deserve the suffering inflicted. It can be incredibly difficult to recover from a Kishi’s physical and emotional abuse, and the devils seldom willingly allow prey an opportunity to rebuild a shattered psyche.