Three years ago, the guide zz, who had extremely strong mental abilities, lost control and accidentally injured his sentry A during a mission. The mission failed, and A also died. With deep guilt, zz was exiled by the tower to the town of Norville on the Kantus continent. He lived a simple life incognito and was determined not to use his mental power again.
Three years later, KK, the best sentry in the tower, found zz and invited him back to the tower to reveal the truth about the failure of the mission...
Concept: zz and KK's adventure story of finding the truth