Those Obnoxious Aliens

Ataru Moroboshi is the unluckiest man alive... and the most lecherous. In a race deciding whether alien oni will take over the Earth, he ends up representing Earth. His opponent? Lum, an oni girl! Despite the weight of the world on his shoulders, Ataru's stupidity (and lechery) get the better of him, and before he knows it, he and Lum are now married! On top of that, Ataru's unluckiness attracts all sorts of hijinks, chaos, and mayhem. Petty rivalries, exorcisms, period dramas, swim meets... Will it ever end?