Kaiser Clyde, a prodigy and the youngest A-rank adventurer, sees an ancient dragon wipe out a village during a wyvern hunt and finds three babies alive in the wreckage. Blaming himself for the deaths, he retires and raises them as his daughters, naming them Elsa, Anna and Meryl. As they grow, each shows a gift: swordsmanship, management and magic. All three also share a love for their father that seems to go beyond ordinary family affection.