The Kabukimono is an artificial human, an individual who he viewed as his mother (the Raiden Shogun, god of thunder) having given him life, but was also the one who ripped away his happiness after abandoning him. That was his first out of two betrayals, his second having occurred after a blacksmith named Niwa had tossed him out in fear of him and his artificial nature. While these misfortunes in his life hadn’t completely stripped away the trust he had to give, it damaged it severely.