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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If only he had gotten the powers of Tiamat before...


Lin Fang turned toward the final treasure: the Dinosaur Egg.


He placed a hand on its surface and whispered, "Alright, big guy… time for you to earn your keep."


The egg dissolved into fragments of light.


[You unlocked Theropod-species Monsters.]


[Theropod catalog added to Summoner's Shop.]


"Well damn…" Lin Fang whistled softly. "System's acting like a rich uncle again."


The reward was generous—if he were still poor.


"Hundred thousand coins feels like pocket change now," he muttered, rubbing his neck. "After what I earned with that undead anaconda… even killing one King-tier is worth five times this."


Chapter 176 - A-rank Summoner