Reverend Insanity is a Chinese xianxia novel written by Gu Zhen Ren (蛊真人). It was serialized on the online platform Qidian from 22 June 2012 until its termination in May 2019, totaling 2,333 chapters plus an epilogue. In May 2019, the novel was banned in mainland China for allegedly "promoting unhealthy values of violence, cruelty, and extreme individualism" and was removed from all major domestic platforms. The author has released no new chapters since the ban.