Ep. 1: A Steamy Special: A Certain Demon's Plan to Defile an Angel's Pure Skin

1

As the girls go on a trip to a hot spring inn, Satanichia seems determined to get Gabriel to get in the baths with her. After eventually managing to convince Gabriel to do so, Satanichia brings out a giant slime to attack her, only for it to ensare everyone else instead. (Source: Wikipedia)