 Nishi is an advertising executive for a caramel company that is planning to launch a new product, in fierce competition with two other companies. His boss builds up Kyoko, a vivacious girl with bad teeth, as their mascot. Kyoko is smitten with Nishi when he is assigned to look after her. Meanwhile Nishi is trying to extract information about his competitors advertising campaigns, from his girlfriend, who works for one rival, and his old college friend, who works for the other rival company.