Wakiyaku Kensei no Sokosoko Heion na Nichijou. Tama ni Bouken, Soshite Eiyuutan.

Russtis, one of the Seven Great Sword Saints and possessing the all-seeing divine skill "Divine Eye," had retired from the front lines for certain reasons and was enjoying a slow life in the countryside. One day, he gets summoned to the capital to give an update on his current situation, and his fate changes completely when he saves a drifting girl named Satie from danger! She then asks him to take her on as her apprentice. After that, more and more girls with divine skills start gathering around him...!?

(Source: Overlap, translated)