Moon Cancer —A class specific to the AI known as BB. She who attempted to invade the core of SE.RA.PH, this title has been bestowed to what she is. An error in the system. The AI that rejects the system. The Cancer of Moon Cell.— Icon Servant Name Stars ID BB ★ ★ ★ ★ 166 BB (Summer) ★ ★ ★ ★ ★ 220 Retrieved from "https://fategrandorder.fandom.com/wiki/Sub:Servant_List/Moon_Cancer?oldid=579216" Categories: Servant List Community content is available under CC-BY-SA unless otherwise noted.