Black Summoner

To ready himself for rebirth in another world, Kelvin trades away certain memories from his past life in exchange for powerful skills, extra ability points, and the prestigious title of S-class summoner. As a special favor, the goddess overseeing his reincarnation, Melfina, lets him pick any companion to help him begin his new life. Kelvin-instantly smitten with Melfina-chooses her without hesitation, believing his deep feelings for her will return even if his memories don’t. With Melfina as his guide, Kelvin sets off on his new adventure. But to summon her physical form, he must gather vast amounts of mana-and the fastest way to do that is by battling powerful foes and forming contracts with even stronger allies.