MTL - True Star - Chapter 27 -Meet the "old man"

With one touch of the stone, Tyron receives his Class and his life changes forever.In an instant his bright and promising future as the scion of two powerful Slayers is torn apart and he must make a decision.Will he allow his Class to be purged from his soul, or will he cling to it, abandon all that he knows, and rise to power?

“Crossing over to a fantasy world of magic and battle auras, Lei Luo accidentally crossed over to the Xiluo Magic Academy and became a librarian.

A mysterious and strange world, a human civilization lacking power, and a horrible and turbulent world of human life, Luo Kai survived humblely as a prisoner. Pain and suffering honed his will. War and killing promoted his growth. He suddenly looked back. Is already one of the most powerful beings in this world.

- Description from novelbuddy

This is a young man who traveled to the world of Azeroth.

For love and justice (don’t become a ghoul), fear of sacrifice (you can run the corpse to resurrect), in search of lost justice and humanity (temporary discipline), don’t stop.

Festival Exercises Retrieve the story of Festival Exercises.

- Description from Ptwxz