Konoha's Tag-System Ninja - Chapter 188 - : Stubbornness and a Taste for Victory!

I accidentally changed the whole world, the resurrection of the dead, genetic variation, recovery of the qi, mountain and seas reborn, land and seas expanded and evil spirits have started to appear.

Ghosts are now commonplace. Some people now have three heads and six arms. Some people have obtained martial arts techniques and ordinary people are now just cannon fodder.

Fortunately, I have acquired an ability which can make various items mutate.

books into martial arts or cultivation manuals,

fruits into precious treasures of heaven and earth or poison that you can only imagine and…

weapons, that can split the earth or gain sentience!

- Description from Novelupdates

The main character has been reincarnated, and he possesses a system and a powerful treasure. Using these, he plans to create his own universe. Keep reading to find out more.

In the expansive expanse of existence, there exist realms concealed from the awareness of ordinary folk.Rain Weathers, an unremarkable teenager with average looks, physique, and grades, was leading an uneventful life.However, everything took a dramatic turn one fateful day when he found himself plunged into a vivid dream, a dream that unveiled a world beyond imagination — a world teeming with spirits, monsters, and conversing frogs.This was the Spirit Realm.Transformed into a player by the mysterious machinations of the universe, Rain, alongside other chosen individuals, found themselves thrust into a perilous world.They were tasked with navigating their newfound domain, establishing their territories, all while fending off relentless onslaughts from beasts, defending their territories from other races, and making sure to stay alive for another day.

System Notification: Your King of Passivity talent was activated through killing the Elit Demon Clan Warrior. You have automatically received the Critical Strike (Passive) Skill.

What? I got another passive skill.

I have way too many skills, I can barely see the end of my skills panel.

I need to be low-key, low-key.

This is the story of a game grinder who used his passive skills to destroy legends.