I Only Have Six Months to Live, So I’m Gonna Break the Curse with Light Magic or Die Trying (Manga)

Prince Callus Leditzweissen is a Taboo Being, an unfortunate soul born with a deadly curse that causes him constant suffering. With no known cure, the doctors say Callus only has six months left to live. But a magician named Gourley gives the boy a sliver of hope when he demonstrates the healing power of light magic. Callus is determined to learn how to use light magic in time to save himself, hoping to live longer to repay all the kindness he’s been shown throughout his life.

Callus continues his magical training, but he also wants to get stronger physically. While seeking help from his brother Damien, the young prince meets the sword master Sieg Lamiared and his daughter Crys. This fierce but kind girl agrees to train Callus in exchange for him teaching her magic, and the two quickly become close friends. But when a wyvern causes trouble in the surrounding forest, Crys goes missing! Now it’s up to Callus, the boy who survived thanks to the love of everyone around him, to step up and protect someone else!