During a routine family gathering, the Kenzaki household is thrown into chaos as a stunning blonde, Diana, materializes from another realm. Startlingly, she declares the need for the Hero of Salvation, none other than my dad, Hideo Kenzaki. As the ordinary high schooler Yasuo Kenzaki, I grapple with the revelation that my father, a seemingly average middle-aged man, was once a heroic savior in a distant land. The weight of this fantastical legacy strains our family dynamics, especially when Diana, recognizing me as the Hero's son, stirs up complex emotions. With my sister's disapproving eyes added to the mix, our once peaceful existence is shattered. How can I restore tranquility to both our home and the foreign world my father once rescued, all while preserving my simple daily life?