Book 1 of the Codex System Series.
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In the fantasy world of Terra, people are divided into two kinds: Those who have mana and those who don’t. The registered mana users are called hunters, and the ones without the mana are called plainfolk. Lin Fang, unfortunately, has been the latter since birth. 

But his misfortune didn’t end there.

After his father’s sudden demise, his mother remarried, leaving him and his sister in the hands of his grandmother. But later, his grandmother also passed away, and his sister moved abroad, leaving him all alone at just 16.

All he had left was a struggling pet shop and his late father's unfulfilled dream of making it thrive.

Fifteen years later, Lin Fang is drowning in debt, betrayed by his unfaithful wife, and addicted to alcohol. His life has hit rock bottom. Filled with many regrets, he jumped into the river to escape this suffering.

But when he did, he neither died nor ended up in the hospital.

Instead, he found himself regressing 7 years into the past, with a mysterious Prehistoric system activated by a pendant he had carried since birth.

Now, with the power to command monsters and carrying the knowledge of the future, Lin Fang set out to redo his life, whether it is becoming the strongest tamer to control prehistoric monsters, getting his true love he had walked away from before, or becoming the richest businessman.

[388,510 coins have been added to the debt]


The notification screen disappeared, and the image of the buffalo calf in the pet inventory started blinking.


As it blinked… A new holographic screen materialized before his eyes.


[Nebula has evolved from Hydro Buffalo Demon to a Hydro Buffalo Demon Lord]


[Nebula has evolved from Hydro Buffalo Demon Lord to Buffalo Demon King]


[Aurochs Species, the Prehistoric Wild Ox] [Muniu Tou, a variant of Ox-headed demon from the Zhonggou legends] [The Minotaur, a monster from the legends of Zuania Continent.]


[Note 1: Aurochs' max grade is Legendary, but the copies can be bought from the Summoner's shop, and as a prehistoric beast, it can be fused with other monster companions.]


Chapter 71 - Venturing into Stellar Rift (Part-10)