This rice cooker is inspired by the traditional Chinese lunch box. Most of Chinese officers eat lunch basically in the company canteen, restaurant or just have a takeaway. We designed this rice cooker that users could easily enjoy hot fresh lunch suited their taste by bringing the prepared ingredients in the cooker tanks to company and heat them (the habit is different from Japanese bento). There are two tanks in the cooker, the upper one could steam dishes and the down-tank could steam rice. At the same time, the inner tank is also equipped with a sealing cover to facilitate the food.