I brought this hot red bean drink from vending machine in Tokyo. The taste were delicious and sweet.
Energy drinks such as these are quite popular in Japan as the lifestyle is demanding here. Tiovita and New Guromont are the famous brand here. Energy drinks usually are sold in small brown bottles and are supposed to give their consumer a boost of energy through a high dose of caffeine and other stimulants.
Plum drink and other energy drinks.