The Story
The story concerns an extremely lecherous and very unlucky high-school boy, Ataru Moroboshi, and bikini clad alien princess Lum. Lum is in love with Ataru because he accidental proposed to her, even though he chases after every humanoid female other than Lum. (It's not that she's ugly, it's just that he lost interest in her as soon as she started chasing him) The series is mainly episodic, with only occasional plots spanning more than one chapter/episode. Each chapter/episode usually concerns Ataru's ill-luck, his lechery (and Lum's jealousy thereof), or the wide variety of weird humans and aliens who love, hate, or simply meddle with Lum and Ataru.
Only You
The first movie was entitled Only You. The main characters are:
- Lum, an alien princess who can fire out bolts of lightning
- Ataru Moroboshi, a lecherous human, with whom Lum is in love
- Elle, another alien princess, who is in charge of Planet Elle
- Benten, Lum's friend
The basic plot of the first film is that the five-year-old Ataru steps on Elle's shadow during an impromptu game of shadow-tag; in Elle's culture, this is viewed as a marriage proposal. Twelve years later, Elle returns to Earth in order to marry Ataru - by which time not only had he forgotten the events of his childhood, but he was also going out with Lum. The rest of the plot focuses on Lum's attempts to prevent the marriage.