Urusei Yatsura S01 E99 Firefighter Mama Visits!

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

Ten's mother, a firefighter, comes to visit her son on Earth. Ten must keep his fire-breathing a secret from his mother as she hates pyromaniacs and will send all those who are to Hell. Unfortunately for him, Ataru - taking full advantage of Ten's mother's position - isn't going to make it easy on him.