Shizuko wa Ore no Yome

A thousand years ago, during Japan's Heian Period, an extraordinary romance blossomed between a royal princess and a powerful oni. Their love transcended the boundaries of their different worlds, culminating in marriage. However, their time together was tragically cut short when the princess passed away. Consumed by an unfathomable sorrow over the loss of his beloved wife, the grieving oni transformed into solid stone, sealing himself away from the world in an endless slumber born of pure heartbreak. Now, a millennium has passed, and fate has finally intervened. The princess has been reborn into the modern era, carrying the soul of the woman who once held the demon's heart. On the very day she celebrates her sixteenth birthday—the precise age she is considered old enough to marry—the ancient spell of grief is broken. The stone-encased oni awakens from his thousand-year sleep, driven by an undying devotion. With his lost love now alive once more, he sets out into the contemporary world with a singular purpose: to find his reincarnated bride and reclaim the bond that not even death could permanently sever.