MTL - The Upgrade System of All Realms Starts From Conquering Naruto - Chapter 16 So what if he’s a genius? He’s not a newcomer yet.

A 13-year-old deaf teenager living in the 21st century suddenly found himself as a young boy in Japan during the early 1900s. With two World Wars, two nuclear bombs, Hitler and many other disasters awaiting his future, he thought things couldn't get worse.Except it did.He found out later on that he had actually reincarnated into the world of Demon Slayer where man-eating demons ruled the night. He thought things couldn't get worse.Except it did.But hey! At least he had unparalleled talent, incredibly special eyes and future knowledge.How will the story of Demon Slayer change with the addition of this unique character? Will so many still die if the Hashiras had one more pillar in the final battle?Or will the story end on a much happier note?

John sacrificed himself to protect Earth and resist the gods, only to be betrayed and killed by his best friend.To his surprise, after death, he was reborn just before the launch of the game “Gods Descend.”In this life, he vows not to let the tragedy repeat!Upon entering the game, John masters the power of reincarnation and unexpectedly awakens an SSS-level talent—“Plunder”!By killing monsters, he can plunder their attribute points; by killing boss-level elites, he can plunder their talents, skills, and special attributes.Killed a tusked wild boar: Physique +1Killed a bloodthirsty wolf: Speed +1Killed an elite boss: Gained 10 skill pointsKilled an epic boss: Gained 10 luck pointsKilled a legendary boss: Gained an S-level talent, Spell Combo...As John grows through killing, when the game merges with reality and the gods descend, they finally realize that there is an existence on Earth that they cannot provoke.John: “I will only make one move. If you survive, you may leave.”In the next second, the ultimate forbidden spell activates: Ragnarok!

Gou Liang travels through worlds in order to complete a mysterious and arduous mission…

16 worlds in total:

School Campus: Strawberry Flavored Scholar Gong √
Entertainment circle: Lemon Flavored Film Emperor Gong √
Ancient Time: Honey Tangerine Flavored Shadow Guard Gong √
WuXia: Melon Flavored Senior Brother √
Beastmen: Pineapple flavored Beastmen Gong √
Ghost Spirits: Snow Pear Flavored Dead Gong √
Ancient Time: Gr*pe Flavored Regent Gong √
Apocalypse: Banana Flavored Boss Gong √
Interstellar: Pomegranate Flavored Sentinel Gong √
Modern: Citrus Flavored Aristocrat Gong √
Mecha: Sweet Jujube flavored Lunar New Year Gong √
Ancient Time: Durian Flavored Battle God Gong √
Magic: Watermelon Flavored Blacken Gong √
Cultivation: Cherry Flavored Disciple Gong √
Fantasy: Blueberry Flavored Demon King Gong √
Celestial World: Bayberry flavored Senior Immortal Gong √

- Description from Novelupdates

Zhou Donghuang, a man from the Earth, is able to destroy any planet in the universe without lifting a finger. His supreme will can sweep across the vast cosmos in the blink of an eye. And his immortal spirit can depart from his body and wander around the universe!