Ultraman - Only Want To Protect You - Chapter 23

Just like how everyone adored heroes in their childhood, a certain young man adored those powers hidden in shadows. After hiding his strength and living the mediocre life of a mob character by day while undergoing frenzied training by night, he finally reincarnates into a different world and gains ultimate power. The young man who is only playing at being a power in the shadows, his misunderstanding subordinates, and a giant organization in the shadows that gets trampled…. This is the story of a young boy who had adored powers in shadows possibly eventually reigning over the world of shadows in another world.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Chen Yu got the heavenly book by accident, and helping others can even gain cultivation and become a fairy.

To this end, Chen Yu started a live broadcast of psychological counseling.

In the live broadcast room, the water friends were all dumbfounded.

“Doctor Chen, are you sure this is psychological counseling?”

“There is no one on the mic who does not break the defense!”

“This crackdown on counterfeiting has actually beaten myself into it.”

Shuiyou: I’m fine, it’s impossible for me to have depression.

Chen Yu: Don’t worry, you will be depressed after I finish speaking.

All the water friends: This is not a psychiatrist, this is a master!

Chen Yu said lightly: Don’t talk nonsense, I just graduated with a bachelor’s degree in psychology.

- Description from novelbuddy