Wondering what Koucha Kaden is? 紅茶 is black tea, and 花伝 literally means "flower-transmission". It comes from the name of a famous treatise on Noh drama. It’s a sweet drink made by Coca Cola.
From Wikipedia (this link): Fūshikaden (風姿花伝, literally "The Transmission of the Flower Through (a Mastery of) the Forms", more loosely "Style and the Flower"), known colloquially as Kadensho (花伝書?, The Book of Transmission of the Flower) is the first known treatise on drama in Japan. It was written by Zeami Motokiyo.
The campaign runs from 7/27/2015-late October, where it’ll run out gradually. You can get a 470mL bottle for 151 yen or a 280mL bottle for 124 yen (tax not included).
Koucha Kaden on Wikipedia in Japanese: https://ja.wikipedia.org/wiki/%E7%B4%85%E8%8C%B6%E8%8A%B1%E4%BC%9D