Became Madara's Uncle at the Beginning

I! Uchiha Madara's uncle, Uchiha Mei. Now I have two nephews, one Uchiha Madara and one Uchiha Izuna. And my favorite thing to do is to cheat my nephew. You can't blame me for this, but my system. It's called the cheating nephew system. You can get points by cheating your nephew and killing enemies, and each task of cheating your nephew will also reward you with a lottery. Then why should I bother to kill the enemy? Isn't it nice of him to trick his nephew? "Madara, have you seen that Hinyu nin? Uncle is going to train you now, go ahead! Kill him!" Eight-year-old Madara looked at his uncle with confusion. "Go quickly!" Ming kicked Madara right in front of the Hinata ninja. "Ding, after completing the task of cheating my nephew, Uchiha Madara was cheated to a level of -S. I will reward the host with an S-level lottery opportunity and 100,000 reward points." "Oh oh oh! Take off from Wuhu!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.