Kuro no Shoukanshi

Black Summoner follows Kelvin, a young man who gives up selected memories from his former life in exchange for powerful abilities, extra skill points, and the rare S-class Summoner title before being reborn in another world. When the goddess Melfina oversees his reincarnation, she offers him a choice of any companion to give him a head start in his new life. Struck by her beauty and already falling for her at first sight, Kelvin chooses Melfina herself, convinced that his feelings will return even if his memories do not. Guided by Melfina, Kelvin throws himself into a fantasy world built around battle, growth, and summoning magic. To give his beloved goddess a physical form, he must gather large amounts of mana, and the fastest way to do that is to level up by fighting powerful enemies and forming contracts with even stronger companions. As his party grows, Kelvin’s reckless enthusiasm and unusual priorities turn his second life into a fast-paced adventure of dungeon fights, monster encounters, and steadily rising power, all while his devotion to Melfina remains at the center of the story.