Urusei Yatsura S01 E103 Panic in the Haunted Inn

"Grab her horns and she might just become your darling!"

Ataru, Lum, Mendo, and Shinobu stay at an inn and meet Otama, a scaredy-cat ghost who tries (and fails) to out-scare an old couple each year around the summer. But the old couple are far scarier than she is (though not on purpose).