Kahey - a Certain Captain's Life

Based on the horror manga created by duo Fujiko Fujio, The Laughing Salesman tells the story of a salesman named Moguro Fukuzo, whose job is to help people fill gaps in their soul. However, in reality, he ruins people's lives if his clients backstab him or never ask him for help.

OVA that is based on a manga simply titled Mumako (literally “Dream Devil Child”) written by Fujiko Fujio A.