Oh My Goddess! Vol 29

From the Dark Horse edition

When Belldandy races Stringfellow against Hild's, er, broom, to win the secret of curing Velsper's magical mange, she learns it's really such a simple matter - so simple, only her sister goddesses Urd and Skuld could possibly mess it up! Thoughts on the power of names run alongside the chase through the streets and alleyways of town in this volume of Oh My Goddess!

Source: Anime News Network Encyclopedia