A-rank adventurer Kaiser Clyde witnesses an ancient dragon awaken and destroy an entire village. Searching the rubble, he finds three baby girls as the only survivors. Blaming himself for the catastrophe, Kaiser retires from adventuring and raises the children as his own daughters, naming them Elsa, Anna, and Meryl. He settles in his hometown, dedicating himself entirely to their upbringing.

Years pass, and the three girls grow into exceptionally talented young women. Elsa becomes a brilliant swordsman, Anna a genius in management and commerce, and Meryl a powerful mage. Together they form a formidable party of high‑ranked adventurers. However, each daughter harbors an intense, nearly obsessive love for their father – a father complex that leads to constant competition for his attention and affection.

The story follows Kaiser’s struggle to balance his desire for a quiet life with his daughters’ overwhelming devotion, while also navigating the return of past threats and the political intrigue of the adventurer world. When the three eventually become S‑rank adventurers and invite him to live in the capital, his peaceful retirement is upended by a series of chaotic events sparked by their father‑centric antics. The narrative blends family comedy, fantasy action, and heartfelt moments as Kaiser comes to terms with the family he never expected to have.