伊欧露

獣人族の身体能力を生かし身の丈より大きな骨斬包を振るう暗殺者。
　幼少の頃に両親を亡くし、生まれ育った里を飛び出し一人で生きてきた事もあり、弱肉強食を自然の摂理として捉えている。
　一人で生きてきたが故に、他人に甘える事が苦手で言葉数も少なく物静か。
　しかし、ミケユと出会って意気投合してからは、家族の様に大切に思いながらも、彼女の幸福を中心に考える様になっていった。

A Leone who utilises her race's physical attributes to wield a greatsword much larger than she is. She lives together with Mikeyu as family having run away from her village at a young age and survived through wholehearted belief in "survival of the fittest". Refers to herself in the third person as "Io".

At the start of the story, she works as a freelance 狩猟屋 (bounty hunter cum assassin) for the Gaidal trading company without telling Mikeyu to help the pair make ends meet. After she quits, she moves in with Mikeyu into the fortress and is generally in charge of cooking for the party. The food she cooks is delicious enough to enable employment at restaurants, were it not for her "unusual" cooking methods...

 Iol hails from 天枯断層, a region mainly inhabited by beastmen and blighted as a site of one of the battles the god Fiusia fought in his crusade. Her parents were the strongest fighters in the village and lost their lives when Io was young defending the village from the monsters incursions which blighted the village for generations. Iol blamed the villagers for abandoning her parents and left on her own, shortly after she saved Mikeyu and started living together with her. Iol with the party's help eventually avenges her parents by slaying the monster responsible for instigating the incursions into her village and learns the truth behind her parents' death. /