Bleach: Watch Closely, This Is How You Use a Zanpakutō - Chapter 260: Resolving the Problem

At the end of the world, a legendary hero gave his life to save a dear friend, only to be reborn as a four-year-old orphan with 'Crab Affinity'.The apocalypse has come and gone, claiming humanity with it. All humans have had their 'Souls' stolen and claimed by monsters - vampires, demons, zombies - you name it.Reborn as Barnacles (Barns for short), the once-legendary hero claws his way back to strength under the tutelage of the gluttonous King Crab, a sentient crustacean with more vice than virtue in his shell.Follow Barns' journey as he rediscovers his power of rebirth, which when combined with a little 'crab magic' has the power to reset humans back to their original selves.It's time to take a crack at resetting the apocalypse.

A biker tries to save a cat on the highway and gets hit by a truck (Truck-Kun), he was rushed to the hospital but, due to internal bleeding, he dies only to be reborn as a cat, in a new world with a system.

In this new and vast world, he tries his best to get used to his new body and get stronger along the way. With his overpowered system and skills. To one day become untouchable.

Everyone can become a fairy, everyone can become a god!

This is an era of national lords, and it is also an era of immortals and gods, and myths are not just stories!

Wu Chi crossed the parallel world and stepped into this exciting world where the heavens are fighting and the blood of all races!

With the mysterious treasure in hand, he can mutate all the territorial buildings!

“White” Lord’s Heart → “Golden” Lord’s Heart! Legendary features, the door to heaven is open!

【Cultivation】→【Spiritual Field】: Yield x1000%! Growth speed x1000%!

【Water Well】→【Moon Well】: Instantly restore blood! Instantly back to blue!

[Arrow Tower] → [Element Tower]: The magic chimes, destroying the sky and destroying the earth!

[Barracks] → [Xiu Xian Academy]: Three thousand sword immortals, why fear a battle!

……

Wu Chi: “Wealth, power, strength, beauty… I want them all!”

- Description from novelbuddy

In the foreign world, the martial artists dominate the world and the sword of the emperor controls the fate of hundreds of millions of lives! Long Yu, the number one killer on Earth, after dying, takes rebirth in this new world in an aristocratic family of martial artists but faces rejection because he is unable to practice martial arts.

- Description from Novelupdates