Also known as: westend-mafia, WESTEND-MAFIA, 毎月5日はWMの日
A five member unit in Hypnosis Mic: Rule The Stage that represents Hachioji division. It consists of Shirakumo Mahiru, Igari Ranmaru, Sakiyama Yoshitsune, Kirimura Tokuma, and Hisakaze Shion.
Unlike other division representative groups where each member is given a Hypnosis Microphone, WESTEND-MAFIA only has a singular hypnosis microphone that is kept by their leader, Mahiru. The remaining members attack other groups participating in division battles using weapons such as metal pipes and knives, instead of mics.