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.

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"So there's a convenience tax too," he muttered, doing the math instantly. "Egg costs 100 coins, instant adult costs a thousand. That's an extra nine hundred just to skip the growth phase."


He snorted softly. "Normally, I'd call that robbery as I have already given away a precious Epic spirit core, which I could sell for more than a million credits easily."


Xuan Hei shifted on the bed, letting out a tiny grunt in its sleep, utterly unconcerned with his financial dilemmas.


Lin Fang glanced at it, then back at his net worth.


"Yeah," he said with a shrug. "I think I can afford that."


[ You have purchased a Level-30 Flaming Velociraptor.]


[ Flaming Velociraptor is qualified to form a contract.]


The air in front of him shimmered faintly, heat rippling outward like a mirage.


Another message followed, slower, more deliberate.


[ Will you form a contract, or leave it as a normal monster?]


Chapter 189 - Flaming Velicoraptor (Part-2)