Moto Maou-sama to Koisuru Hana: Kazoku ni Suteraretara Ma no Ouzoku ni Metoraremashita

Kanon, the daughter of an aristocrat, is about to be forced into a political marriage arranged by her stepmother. However, the day before her wedding day, she is kidnapped by bandits for ransom. What's worse, she is abandoned by her family and sold to the demon tribe! Caught in a desperate situation, she is rescued by the former Demon Lord himself! (Source: Kodansha, translated)