Ah! Is That Jealousy?!
Keiichi receives his first love letter from a cute second-year student named Shiho. The girl is more than happy to see him; in fact, she senses evil spirits around Keiichi, and attempts to exorcise them! Shiho even visits their home to perform a large-scale cleansing. Belldandy remains strangely silent as she attempts to deal with her feelings of a different girl giving Keiichi some attention.
Aired 12/05/2006EP 6 - Ah! Is That Jealousy?!

Oh! My Goddess: Flights of Fancy
The song may say "thank heaven for little girls", but who is college student Keiichi Morisato supposed to thank when three honest to goodness Goddesses move in and take over his life? After all, according to most mythologies, relationships between mortals and immortals usually leads to mortifying complications, so we're already talking about an extremely mixed blessing!
(Source: Crunchyroll)