Manga · Cancelled

Yuusha no Mago to Maou no Musume

Hero's Granddaughter and Demon Lord's Daughter,La nieta del Heroe y la hija del Señor de los Demonios,Sakurako & Darkneria,The Hero's Granddaughter and the Demon King's Daughter,Внучка Героя и дочь Короля демонов,勇者の孫と魔王の娘

From Alpha Manga: The former world was shattered by the war between humans and demon-kin. The only surviving royal of the defeated demons is the Demon Lord's daughter, Daqne, who returns to these former demon-controlled lands with bitter memories. There she meets and helps a black-haired girl named Sakurako. But that girl is a descendant of the same hated hero who demolished Daqne's family.