It's really lonely up in the heavens without your big sisters to keep you company, especially when that means you are stuck with the job of tracking down all the bugs that keep cropping up in the Ultimate Force System. So little Skuld decides to pay her big sister Belldandy a visit. When she hears about the contract that binds Belldandy and Keiichi together, she decides that something must be done! Meanwhile, Keiichi gets stuck with representing the Auto Club in the University Drag Race, only to find out that his sempai, Tamiya, has a secret bet laid down on the outcome. But that's not his only problem. He's got an angry little goddess gunning for him!
When college student Keiichi Morisato dials the wrong number while ordering for some food at his dormitory, he accidentally gets connected to the Goddess Hotline and a beautiful goddess named Belldandy appears out of a mirror in front of him. After getting kicked out of the dorm, Keiichi and Belldandy move to an old shrine and soon afterwards, Belldandy's sisters Urd and Skuld move in.
