When the protagonist happens to have the same Immortal Cultivation Technique as Monkey Brother in Naruto, what will he bring to the world?
"Haha, Hashirama, your immortal body is nothing more than this."
"Orochimaru, do you want to live forever? Let me teach you."
"Madara, do you also want to dance with me? Look at my magic, heaven, earth, and sky."
"Scorpion, look at the bumblebee behind me, this is awesome"
"Tsunade, do you want to be young? You don't have to go to so much trouble. My brother will teach you."
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Others play with chakra, but I cultivate immortality. See how the protagonist destroys this ninja world. Ha~ha~ha~ Everyone, here comes the Great Demon King of the Ninja World, Sennin Haoshen.