Ramune (ラムネ) is one of the modern symbols of summer in Japan and is widely consumed during warm festival days and nights. The name Ramune is derived from the English word for Lemonade. If you're new to Ramune, you might have a trouble opening the bottle; it comes sealed with a fun marble that acts as a stopper. Bottles of the soda are sealed up with a marble. To open them, you have to force the marble down into the bottle, where it gets captured in a small chamber within. So have you tried Ramune before? :-)