Skuld reveals her latest invention: Banpei-kun RX. Banpei is a robot designed to protect Belldandy, which he does easily as Marlier shows up for an attack. But that also means protecting her from Keiichi and Urd and draining tons of power from the house. Can Skuld teach Banpei to play nice? And what will they do when Marlier launches another attack?

Urd and Skuld leave to do some work back at heaven. Skuld has Keiichi eat some flan which transforms Keiichi into a woman. Now he'll keep his hands off Belldandy, right?

Keiichi and Belldandy go through Urd's potion ingredients to find an antidote but the formula goes wrong and Belldandy catches some kind of flu, and it's getting worse!

Yggdrasil's downtime causes Skuld to become a grown woman. She has until sundown, when Yggdrasil is restored, to experience life as an adult. After escaping an uncomfortable situation with Toshiyuki Aoshima, Skuld explores her newly grown feelings for Keiichi, and asks him to go out with her the rest of the day.