S Rank Boukensha de aru Ore no Musume-tachi wa Juudo no Father Con deshita

Kaiser, the youngest A-rank adventurer and a true prodigy, stumbles upon three surviving babies in the ruins of a destroyed village. Moved by their plight, he makes the life-changing decision to retire from adventuring and devote himself to raising them. As the years pass, the girls blossom into remarkable individuals, each excelling in their own way—swordsmanship, magic, and leadership. But there’s one thing they all share: an overwhelming love for their adoptive father, Kaiser!