Urusei Yatsura Movie 1: Only You

The Urusei Yatsura Movie 1: Only You follows Ataru's situation when he receives wedding invitations from his future wife, Elle, an alien princess. Ataru had unknowingly played a game called "Shadow Tag" with Elle 11 years ago, resulting in a marriage contract. When Elle's emissary arrives, Lum and her friends decide to intervene, leading to a hastily arranged wedding for Ataru and Elle.