In the series, Ataru Moroboshi's supernatural encounters with the feminine kind all start when he's chosen to play tag with an alien princess named Lum who invades the earth on her UFO. Ataru has ten days to touch Lum's horns or aliens will take over the earth! As it turns out, the game of tag is only the beginning of Ataru's troubles, as he continues to attract strange encounters with otherworldly beings like beautiful snow spirit Oyuki and the sexy crow goblin Princess Kurama!