Koshurishimono

The Koshurishimono is a mysterious power that is the treasure of Mu. Although thought to be a treasure it is a mysterious force that even the Mu people know little about. From what it seems it awakens the true power of the God Mazinger. After Yamato is near death and brought back to life along with the Mazinger, the power awakens within them making a higher synch between them and greater strength.