Urusei Yatsura: Lum the Forever

"Lum, the alien princess from Oni, never expected that her greatest battle wouldn't be for Earth, but for a single, perfect memory. When a mysterious force begins erasing her chaotic, loving history with Ataru Moroboshi, the entire Tomobiki neighborhood must rally to save the very fabric of their reality. This 1986 animated classic blends uproarious sci-fi comedy with a surprisingly poignant core, exploring what truly makes a relationship—and a life—worth remembering forever. A foundational film in the beloved 'Urusei Yatsura' saga."