Aa Megami ni kokoro ubawarete?

Skuld reveals her latest invention: Banpei RX. Banpei is a robot designed to protect Belldandy, which he does easily as Marller 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 Marller launches another attack?