Setsuna is a female Demi-human slave that Keyaru bought and recruited into his party.

After she and other members of her tribe were taken as slaves and endured harsh abuse, Setsuna has developed a strong hatred towards humans and takes great pleasure in killing Jioral Kingdom knights. Despite this, she is not willing to extend her vengeance towards innocent people.

Power and Abilities

(Source: Kaifuku Jutsushi no Yarinaoshi Wiki)