It’s considered desirable for Japanese women to have a small mouth known as ochobo, which is why they often cover their mouth when smiling and laughing. Freshness Burger realized this was also the reason women weren’t purchasing its largest burger so they hired the Ad Dentsu ad agency to create the liberation wrapper, a napkin that conceals chewing with a picture of closed mouth. The tagline touts “Freeing women from the spell of ochobo.” The company has seen a 213% increase in sales among women, who have been liberated… to eat like Americans!