You Said This Was a Summer Job, So Why Are You Hunting a Qilin in Ailao Mountain?

[High Martial + Classic of Mountains and Seas + Giant Beasts + Beast Transformation + Battle Armor + One Female Lead + Fully Developed Worldbuilding + Bureau 749 + Enemies from the Same Source]

College student Gu Que hopes to earn money for tuition over the summer, but a medical examination reveals he has bone cancer and little time left to live.

One day, a group of people claiming to be from Bureau 749 takes him to Mount Ailao, a forbidden zone.

There, he sees not only the legendary qilin, but also a python bigger than a semi-truck, a praying mantis taller than a person, and all kinds of fantastical beasts recorded in ancient texts.

From then on, he works as a summer temp, containing strange beasts, dealing with anomalies, and eliminating foreign forces.

He explores the Shennongjia forests and climbs Kunlun Mountain, where the Queen Mother of the West is said to have lived.

He rides a dragon, sleeps beside a phoenix, kills a Bashé snake that can swallow an elephant whole, and captures a Kunpeng thousands of miles long in the Arctic Ocean.

…

When summer ends and his classmates settle into doing nothing, they see Gu Que on an official livestream, slaying an evil flood dragon in the Yellow River and subduing a Azure Dragon in the East China Sea. He becomes world-famous, an unmatched national hero.

Following in the footsteps of those who came before him, he recovers the lost ancient age.

It starts with a summer job to earn money, and ends with him creating another three thousand great worlds!