Yuuta led an unremarkable existence—a struggling college student working minimum wage, orphaned and isolated in a quiet facility with no family ties. Everything shifted the night he experienced an extraordinarily vivid dream: marrying an extraordinary, formidable Dragon Queen from a parallel dimension. Upon waking, he dismissed it as mere imagination. Then she materialized in his bedroom—complete with wings, horns, and a young daughter who addresses him as Papa. The dream was real. Yuuta's mundane life has transformed completely. Erza, the Dragon Queen, has been exiled to the human realm with her power severely diminished. She now navigates cramped apartments, manual labor jobs, and Earth's overwhelming realities. Yuuta, once isolated and directionless, unexpectedly gains a family, overwhelming obligations, and emotional depth he never realized existed. As supernatural threats, parental challenges, hidden magic, and shadowy antagonists converge on his world, Yuuta evolves—not into a legendary warrior, but into someone with something genuinely worth defending.