I'm not sure if this brand-pairing and special menu item from BK Japan is for real or an elaborate hoax cooked up by a giggling team at CP+B. Either way it's a show-stopper (and likely a heart stopper), because who in the world would want to eat seven - count 'em, seven - beef patties between a sesame seed bun with BK special sauce? It's a steal at only 777 yen! I'm sure all seven deadly sins are committed by eating one of these.
Hat tip @amuraka