Oh My Goddess!, Volume 31 (Oh My Goddess! #195-200)

Ever since a cosmic phone call led to five literal young goddesses - Belldandy, Urd, Skuld, and, like occasional vowels, Peorth and Lind - coming to live in college student Keiichi's residence, his personal life has been turned upside down, sideways, and sometimes even into strange dimensions!

Peorth is called back to Heaven - which is probably just as well, considering the mischief she caused in trying to get Keiichi to express his true feelings to Bell-chan. But the gate to return her isn't opening - because it turns out that such gates aren't things, they're beings that seek information... and this one, in the form of a cute girl, is on strike - until she gathers certain earthly knowledge involving love and kisses!