Master Went Crazy, I Trained My Junior Sister Crazy Too

If you are not crazy, you will not survive. Xu Yunfeng taught his master to kill three corpses, and the master grew four heads. The teacher sister killed three corpses, and the junior sisters became four: One kicked him; one touched his face; one bit him. And the junior sister has become crazy... Master and junior sister are both crazy, and Xu Yunfeng can't save himself...