Naruto: teaching disciples for ten thousand times the Reward

After traveling through Naruto, he became the weakest villain Mizuki. 　　Fortunately, the system is activated, the apprenticeship will be returned ten thousand times. 　　Granting apprentices ninjutsu, illusions, taijutsu, ninja tools, items, bloodline, etc. will receive a system refund of up to 10,000 times. 　　【Ding! 】 　　[You grant Naruto a bowl of miso barbecued pork ramen, triggering a thousand-fold return. 】 　　[Congratulations on getting a bowl of Miso Barbecued Chakra Noodles. Eat it all and your chakra limit will increase by 1 kakashi. 】 　　【Ding! 】 　　[You grant Uchiha Sasuke the treading water practice method, triggering a ten thousand times return. 】 　　[Congratulations on acquiring the art of stepping on the air. You can step on the air to spiral up into the sky and stay in the air for a short time. 】 　　… 　　According to the tradition of Naruto, the disciples are taught to kill their masters? 　　It doesn't exist. In my case, the master is always better than the apprentice.