URUSEI YATSURA

The lecherous Ataru Moroboshi is unremarkable, yet his extreme bad luck stands out like the horns on an alien's head. When Earth is attacked by a fleet of Oni alien invaders, Ataru is chosen to represent humanity in a combat with one of them. It's a stroke of luck for Ataru that the duel is actually a game of tag, and that his opponent is Lum, the daughter of the Oni's chief, who prioritizes her own pride over winning—as Ataru discovers by taking Lum's bikini top and thus victory.