Black Feather: Stolen by the Golden God Episode 8

In the realm of Norse myth, Sifja—a handmaiden of the Black Feathers—is mistaken by Adrian, a prince of the gods, and shares a single fateful night with him, after which she gives birth to Fenrir, a child of the Golden Feather bloodline. Her jealous stepsister, Verna, usurps her identity, seizes both the infant and the sacred token, and exiles Sifja to the Shadow Realm.