Urusei Yatsura: Nagisa's Fiancé (1988)
Original title: 渚のフィアンセ
Urusei Yatsura: Nagisa's Fiancé is a 1988 Japanese-language animation movie directed by Setsuko Shibuichi, with a running time of 27m. It stars Masahiro Anzai, Toshio Furukawa and Fumi Hirano.
Lum, Ataru, Mendou and Shinobu visit an inn which Ryuunosuke and her father have opened. But when it turns out to be on a haunted desert island, the stage is set for some serious silliness!