The Dragon King’s Secret Vow

Lucas, the immortal Dragon Emperor, hides his power to honor a deathbed vow, spending three years as the Vances’ scorned live-in husband. Serena mocks him as a worthless lecturer, even humiliating him publicly to please her suitor Christian. The moment he leaves, the Vance empire crumbles. Only then does Serena realize he was her true guardian—and her pride cost her everything.