National Ninja World: No One Knows Ninjutsu Better Than Me

On this day, time in the entire solar system stops. Everyone traveled to the ninja world and became students in the same class as Kakashi and new students in each ninja village. And successfully brought out the Chakra Extraction Technique and the Three Body Technique. The choice now appears: 1: Enter. You will take risks by re-entering. Once you die inside, you will lose the ninjutsu retention that you have gained in the ninja world, but also because of the risk, you will have the opportunity to gain more ninjutsu and grow. 2: Hang up. If you hang up, your life will not be in danger, but you will not be able to grow from the ninja world. Of course, if you have the ability, you can grow in reality. When everyone chose to enter for growth and new ninjutsu, Chen Feng, who had traveled through time, chose to hang up without hesitation. Because there is no Naruto manga in this world, and no one knows ninjutsu better than him! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.