^
If the text in the coloured squares are supposed to represent what the colours stand for then;
Red = the cast working at Afilia Stars in Ropponig, Tokyo
Blue = the cast working at Royal Afilia Magic Academy in Ikebukuro, Tokyo
Purple = the cast working at Afilia Sherry's in Ueno, Tokyo
Yellow = the cast working at Royal Afilia Dining in Nagoya, Aichi
Green = the cast working at Afilia Kitchens in Nipponbashi, Osaka