元戦闘用奴隷ですが、助けてくれた竜人は番だそうです。 (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Hachiban spent her miserable days just fighting as a combat slave. One day, Celeste, a dragon, goes to the arena as a member of the security force to uncover the arena. One look at her fighting figure and he realizes that she is the one whom God has destined for him...? Through a miraculous encounter, their fates now begin to intersect..!

(Translator: DeepL)