Demon King of the Ninja World, I Use Negative Values ​​To Upgrade My Attributes

Ding dong! Bind the Great Demon King system and defeat Kaguya Otsutsuki in the final mission! Chen Yun, who was reborn in the world of Naruto, unexpectedly became Madara Uchiha's uncle and was bound to a strange system. Anyone who has negative emotions towards him will gain a negative value. Negative points can be used to purchase various ninjutsu, even blood succession limits, and can also improve strength and chakra attributes. Touched Uchiha Madara's head, negative value +99... It seems that Uchiha Madara doesn't like me touching his head... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.