Talent-Swallowing Magician

Elric Mervinger, the sole heir of a prestigious magic family, is unable to perform magic due to a rare medical condition. While attempting to cure his disease, he stumbles upon the demon Mephistopheles, who tries to possess him. But when Elric ends up absorbing Mephisto instead, the two become bound together. With this newfound demonic power, Elric must navigate a world that has abandoned him, uncover the truth behind his family's downfall, and decide whether he will use his abilities to restore his legacy or be consumed by the darkness within.