黒鳶の聖者～追放された回復術士は、有り余る魔力で闇魔法を極める～

Russel was a saint who was an expert in recovery magic. He was in a group with his childhood friends until the rest of the members learned recovery magic. Branded unnecessary and expelled from his group of friends, he meets a mysterious beauty named Sybilla. His infinite magical potential, combined with her guidance, now allow him to reach heights once deemed impossible! (Source: Overlap, translated)