Oh My Goddess! Vol 15

From the Dark Horse edition

Ever since a cosmic phone call brought the literal young goddess Belldandy into college student Keiichi's residence, his personal life has been turned upside down, sideways, and sometimes even into strange dimensions! The battle to control the minds of every student at Nekomi Tech comes to its showdown, as the power behind Queen Sayoko's throne is revealed at last! Then it's back to good old-fashioned campus rivalries, as Megumi squares off against a different kind of royalty... the one who rules the road on the Inokuradai Pass!

Source: Anime News Network Encyclopedia