Speciality for the Fallen Knight ~I Fell in Love with my Ancestor's Fiance

The world where three kingdoms--one ruled by humans, one by beastpeople, one by elves. When the Demon King conspired to make the world his own, three kingdoms unified to fight back. The Demon King was defeated, thanks to the great work of the Hero Yulius, Priestess Shisty, Holy Knight Lancelot, Fighter Ivan, and Mage Lynerie. But Lancelot was accused of crime and sealed into dark sleep as a fallen knight...until he heard someone call his name. It was the voice of Ange, the love of his life. He meets a girl who look just like her at a cafe, but she says her name is Noelle. Lancelot never knew...that three hundred years had passed since he was sealed.