Urusei Yatsura Movie 1: Only You

Synopsis

In Tomobiki, everyone receives an invitation to Ataru's wedding, causing Lum to explode in anger, particularly because she is not mentioned as the bride. The situation stems from an incident eleven years ago when Ataru played "Shadow Tag" with a young girl named Elle and emerged victorious. On Elle's home planet, winning this game means marriage. When Elle's representative arrives to finalize the wedding plans, Lum's attempts to intervene prove futile as a protective force field shields Ataru from her electrifying love attacks. Lum's ally, Benten, proposes a surprise wedding to preempt the arranged ceremony. As a result, Lum and Benten kidnap Ataru along with all the invited guests, leading to a chaotic impromptu wedding event.