Inorganic Killer: the Last Mystery

He is an ancient magician who has awakened from a long slumber, carrying long-lost secrets and taboos. In order to survive in this strange world, he and three special companions - a silent skeleton, a heroic spirit inhabiting the knight's armor, and a forest man from the deep forest - disguised themselves as ordinary magicians and lived a quiet and secret life in an isolated manor. They get along like a family, carefully guarding their own secrets and each other. However, this hard-won peace was completely reduced to ashes after the arrival of an existence named "Cyn". That day, the manor was destroyed. The companions fell one after another - the skeletons were turned into pieces, the armor of the heroic spirits was torn, and the Mori people's arrows were no longer able to shoot. Only the magician was left standing among the ruins, holding the staff tightly and carving the word revenge into his soul. When the last mystery disappears, revenge is the only magic.