Kinki Kaiju no Saikyou Soubizukai: Noroi shika Tokenai Munou to Tsuihou sareta ga, Sokushi Item wo No Risk de Tsukaihoudai

Lake, whose only skill is "curse dispelling," is denounced as useless by his party members, cast out of the party, and abandoned deep inside a dungeon. Stranded all alone in a dungeon teeming with monsters and facing a desperate situation, Lake somehow manages to stumble into a hidden room... And what he finds waiting for him there is none other than an SSS-rank item: "The Ring of the Curse Demon God"! When he immediately uses his curse-dispelling ability on it and equips the ring, a beautiful silver-haired girl named Miu emerges from it...!

(Source: Hifumi Shobo, translated)