He Has S-Rank Skills But Can Barely Beat A Level 1 Slime - Video

Kelvin gives up some memories from his former existence in return for powerful skills, additional skill points, and an S-class summoner title in order to prepare for rebirth in another realm. As an added bonus, Melfina, the goddess who facilitates his rebirth, provides him the choice of any partner to help him get started in his summoner duty. Kelvin, who fell in love with Melfina at first sight, quickly picks the deity, believing that his ardent affections for her will reemerge even if he loses all of his memories.

Anime: Kuro no Shoukanshi