Mamonogurai no Boukensha: Ore dake Mamono wo Kuratte Tsuyoku Naru EP5 - Elysia of the Jade Storm

Five years ago, the Elf girl Elysia lost everything in the labyrinth. Her party disbanded, and she was struck by a cruel "Level-Down Curse". As her strength withered away, it was Rude, the shunned adventurer, who reached out to save her.