Oh My Goddess!, Volume 12 (Oh My Goddess! #68-72)

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! Maybe you think Peorth couldn't cause any more trouble - well, think again! Determined to provide Keiichi "better service" than Belldandy, she's dragging him out on a date... having studied human mating customs through shojo manga! But what is the secret slight from long ago that truly drives Peorth's efforts against her rival?