As the name suggests, Chao Bao Zi specializes in Chinese cuisine, particularly the dish for which it is named, the baozi. The restaurant is usually staffed by Chao and her friends: Satomi Hakase, Satsuki Yotsuba, Ku Fei, and Chachamaru Karakuri. Chao and Satsuki cook, and the serving is done by Satomi, Chachamaru, and Ku Fei. Although it hasn't been open very long, Chao Bao Zi has become extremely popular all over the campus, by teachers and students alike at all levels.
What appear to be two gun turrets are mounted on the top of each car, but their barrels are sealed, and their purpose remains unknown. The kitchen car is also capable of flight, the stools converting into hover engines.