Muteki na Okyakusama
Yoshiki works as a delivery boy for a noodle shop and every days he delivers to a customer by the name of Nogi, who treats him like a personal maid and annoys him. When Yoshiki's parents decide to remodel the shop they call Nogi, and this is Yoshiki's chance to get revenge by being a demanding customer and giving Nogi a taste of his own medicine!
(from B-U)