In the Naruto world, I'm a teacher: My students save the world

Read up to 12 advanced released chapters: https://www.patreon.com/Pervy_Sennin Plenty of r+18 in this work. The smut will always be brought back into the picture. ________________________________________________ In the Naruto world, I became stronger, and later a teacher. It was all thanks to a system called the Universal Gym. In the Universal Gym, anything you do can make you stronger... Including lemon time... hehe My disciples are the characters of the original world (Naruto, Sakura, Ino...), what could change if they became stronger due to my training? Hmm... How about I give this disciple of mine a Devil fruit? ________________________________________________