Shinka no Mi (Shiranai Uchi ni Kachigumi Jinsei) - Chapter 228

Haruma Kazuki is a cursed (or maybe just deeply unfortunate) high school student whose lewd, panicked, or absurd thoughts literally manifest in reality — especially when he tries not to think about them. The more he denies or avoids feelings, the more chaotic and trope-heavy the consequences.

I, Ichinosuke, failed to get a job for 100 consecutive times. Furthermore, my record is still being updated as unemployed.

On my way to a job interview, I was involved in an accident with a truck and tragically passed away.

And then, a Goddess bestowed upon me the ability to grow at a speed 400 times faster than normal, before sending me to a game-like otherworld.

However, knowing that I would not become stronger even if I continued growing while jobless, I aimed to get a job, but I found out that it was my terrible fate to remain jobless.

As my Growth Cheat and Jobless Cheat existed side-by-side in this otherworld, an adventure record, no doubt certified by the job-placement agency as a harmful book, begins here.

Reincarnated as the first prince of the Jing Dynasty, Jiang Changsheng was transferred by a traitor as soon as he was born, and then he was sent to a temple to become an ordinary little Taoist priest.

From the prince to the little Taoist priest who no one cares about, his life has fallen. Fortunately, Jiang Changsheng has activated the survival system and has an infinite lifespan. As long as he survives the hardships of life, he can get a survival reward.

He was almost killed by his brother while practicing martial arts, but survived by luck and got the leg of the gods.

Encountered an earthquake, was nearly killed by the beam of the house, and obtained the Nine Searching Heavenly Dragon Step.

The demons roamed the capital, passed it safely, and obtained the magic weapon to conquer the demon pestle.

…

There are many dynasties, demons are rampant, and martial arts rule the world. This is a world without immortals and gods, and Taoism is hidden in the halls and mountains.

Three hundred years later.

When the Jing Dynasty was prosperous, it ushered in decline, the princes rose together, the emperor became a puppet in the hands of the heroes, split the dynasty, and fought for decades.

The puppet emperor Jiang Xuanzhen came to the Taoist temple and knelt down and cried, “My descendants are not filial and unable to return to heaven, please ask our ancestors to ascend the throne and continue my grand scene for another 300 years!”

- Description from novelbuddy

The protagonist travels through Shu Mountain and becomes a demonic dragon guarding the heavenly book in Dinghu Peak.