Naruto: The Prince of Lust - Chapter 225

Chen Mu, a low-level officer, thought he could only live a cautious life, but unexpectedly he got a system panel that could accumulate experience, and he could master all the skills with just one practice.

[Blast Knife + Gale Knife + Wind Chasing Knife = Blast Artistic Concept]

[Jade skin grinding method + sand iron method + coarse salt method = skin of copper and steel]

A peerless martial saint with unparalleled swordsmanship, bronze skin and iron bones, and a body of pure gold was born step by step.

- Description from novelbuddy

Kaizen Renji Asahina was an NPC in a popular RPG, designed only to sit in class, nod on cue, and say three recycled dialogue lines.But one day, something glitches and he wakes up.Suddenly aware, trapped inside the Academy of Heroes, Kaizen must survive:A Demon King candidate as his overly earnest roommate.A terrorist student club that crowns him “Lord Shadow.”An Inquisitor waiting for any excuse to turn the academy into a warzone.He’s just an NPC.Why is he the center of the story now!?

To Gu Mo, everyday life seems like a peculiar online game. He gets 'knocked offline' after being awake for 8 hours and can see other people's IDs and health bars.And even worse, he could enter some mysterious places in the city.“Buzz...for protecting...buzz...physical and mental health, users under 18 are subject to the anti-addiction system restrictions, your...online hours have reached eight, forced offline...login restriction...please complete quickly...buzz...official certification...”