Master アバカブのマスター

Proprietor of the ABCB cafe located on Orange Road and Madoka's boss. He is one of the few characters who realizes how Madoka and Kyōsuke feel about each other, and does everything in his power to smooth relations between the two. In the manga he shuts down ABCB after it is discovered that Kyōsuke was working there (Japanese middle school students can not hold jobs). In the novels it is revealed that he bounced back by opening one of the first cybercafes in Tokyo. Source: Wikipedia