NamhyeBlueMoon

Han Seojun was a loser, frail and barely more than skin and bones from a life of poverty, was raised by his hardworking mother with no knowledge of his father. At 18, he inherits the Ancient Infinite System, a power passed down for generations from Goddess Zyraena, The Former Echidna (Goddess of Monsters).

The system transforms his weak body and improves their lives. Just as Seojun is about to take his dream veterinary exam, he's suddenly summoned to the Abyss Realm, a brutal world where only the strong survive.

After 500 years of battle (About 69 Chapters) Seojun finally took back the Realm and returned to Earth. 

Ding!
[Congratulations Host! You have max your level! LV. 999,999]

Ding!
[You have obtained a Hidden Class: SSS-Rank Abyssal Tamer.]

[Title Acquired: Lord of the Abyss]

But the world had changed. Dungeons and monsters are rampant, and people now possess skills and classes granted by a system called global system Where Earth transformed A Game into Reality.

People granted is known as the Awakeners and Seojun, protected by his Infinite system, rejected the global system. 

With the world so different, Seojun then took a role of a professor to live peacefully but instead obtain a hidden profession. 

Ding! 

[Congratulations! You have obtained SSS-Ranked hidden profession transcendent mentor!]

First task: Select one Non-awakened student.

Infinite System Inheritor Return From The Abyss

They walking through the forest, searching for beasts. It felt like forever, and they were getting tired. Lila suddenly stopped when she heard something

"Water," she said, pointing ahead. "Let's go there."

They followed the sound and soon reached a stream. By the water stood a beast, like the one they had seen earlier—a large, zebra-like creature. Its stripes glowed faintly, and sharp horns curved back from its head. Around its neck hung a yellow marble, shining like a pendant.

Lila crouched behind a bush. "Seojun, climb that tree. Andrew, circle around the other side. Make sure no one else is here," she whispered.

Seojun nodded and climbed a tall tree. Andrew hesitated but followed her instructions, moving quietly through the bushes.

A few minutes later, Seojun climbed down. "No one's here," he said calmly.

Andrew returned from the other side. "It's clear. Let's grab the marble now!" he said, stepping forward.

Chapter 205: Got one