Naruto: My Ninjutsu Has Darkened

When he woke up, Mu Feng found that he had traveled to the world of Naruto and became a member of the Uchiha clan.
With Obito and Kakashi, Mufeng felt huge pressure.
But fortunately, he was bound to the blackening system, and the ninjutsu, taijutsu, and blood succession limits he learned were directly blackened and enhanced at every turn.
[Ding, your ‘Clone Technique’ feels that you are too weak, so it will turn black directly. You have obtained the perfect clone technique! 】
[Ding, your ‘Chakra’ feels insulted and is turning into a ‘Chakra’! 】
【Ding, your 'bloodline' feels despised and turns black! You activate the three magatama sharingan eyes. 】
...
Shenra Tianzheng, Earth Explosion Star, Wheel Tomb...
When Mu Feng learned these ninjutsu, from then on, there was a supreme power in the ninja world.