Ten is a young, mischievous alien from the classic anime series "Urusei Yatsura." He is the cousin of Lum, the series' main female protagonist, and often causes trouble for the show's characters with his fiery breath and playful antics. Despite his youthful appearance and childish behavior, Ten is quite intelligent and resourceful. He often engages in playful rivalry with Ataru Moroboshi, the series' main male protagonist, adding humor and chaos to the storyline. Ten's presence adds a comedic element to the series, highlighting his dynamic relationship with Lum and the other characters.