The Great Spring War: Lum brings Ataru against his will to her home planet to take part in a Setsubun ball-throwing competition between her race the Oni and the 'Cosmic Gods', represented by the headstrong Benten, whom Ataru, to the detriment of the competition, immediately falls for.
The Benten Gang's Return Match: Benten and her motorcycle gang come to Earth and end up in a fight with Lum.