Could it be that I am the cruel villain? - Chapter 23 - : Seeing Through the Bellyband

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

Adrian Voss was a forgotten beta tester—erased by a corrupt game company that put profit over players.Now reborn in Primordial Abyss with a glitched class that lets him control dungeon bosses, he doesn’t grind levels… he grinds players.Every monster he subjugates becomes a weapon. Every raid boss he enslaves earns him passive income. And every overconfident guild that steps into his domain?They drop loot when they die.But this isn't just another OP power trip. Adrian doesn't win because he's stronger—he wins because he's smarter. He lays traps like a raid leader, exploits mechanics like a dev, and rewrites the system from the shadows.From dungeons to PvP, he turns the most advanced gaming system ever built into a weapon that stabs its creators in the back.Now the streamer assassins, sponsored guilds, and even the developers are hunting for the one they call...The Dungeon Phantom.Too bad they don’t realize:The real dungeon isn’t the game.It’s the one they’re walking into.Let the hunt begin.

An ordinary medical student suddenly got the blessing of the system and could directly see the patient’s health! Since then, treating illnesses and saving lives has become commonplace, and he has also become a legend in the medical field.

- Description from novelbuddy

Makoto found himself transmigrated into the world of Naruto, but there was one small problem.He was a mere lackey, someone who didn’t even get a single line in the original story.But fate had a twist in store for him.Makoto awakened a Chat Group, where every member was a former powerhouse of Hidden Leaf Village. What’s more, with thier consent, he can inherit their bloodline, combat experience, ninjutsu, chakra, and so much more!How will the story of Naruto change with the inclusion of Makoto? How will the group members react upon discovering the current state of the Hidden Leaf Village and the fate of their loved ones?