S1·E112 Lum and Ataru – A Night only for Two
Aired November 9, 1983
Synopsis
Ataru's parents head away for an overnight trip to Atami, leaving Lum and Ataru in the house together. Ataru dreads the prospect of a Lum-cooked dinner, while a horrified Mendo and Lum's Stormtroopers storm the Moroboshi home to protect Lum from Ataru. Ataru tries to kiss her at the last moment, but as a precaution, puts an armor that prevents electricity, in the last frames...he begins to cry.