Aa akuma no sasayaki wa tsubo to tomo ni? Aa Megamisama : Season 1 Episode 22

Mara retrieves a demonic urn from a cave. Urd's goddess license had been suspended, which motivates her to look for a regular job. But when things go bad there she accepts her demonic heritage and transforms into the Lord of Terror. Big Trouble for Keiichi and the gals.