I Athena Married the Demon of SpartaEpisode 4

Banished from Olympus, Athena, the goddess of wisdom and war, is reborn as Althea, an illegitimate noble girl in Athens. She is forced to marry Charis, the notoriously cruel young lord of Sparta. On their wedding night, she takes control with her wisdom and discovers Charis is actually biding his time in secret. The two join forces to crush his siblings’ usurpation plot and fend off repeated schemes from their divine enemy Aphrodite. In the end, Athena abandons her immortality for love and spends a mortal lifetime with Charis.