Moguro Fukuzou seductively approaches and murmurs to modern people with various worries and desires. However, those who break their promises to him will pay the price and fall into the abyss. This is a masterpiece of black humor in which we are made to taste the foolishness and weakness of human beings. * *Black Salesman* is an earlier title used for the series. It's a 1 volume release and all its stories were included in *Laughing Salesman* volume 1.