Vast Sky Drizzle

When Jiang Ming woke up in a strange world, he learned he had obtained immortality. In the dangerous and ruthless world of cultivation, he was determined to carve his unique path. Taking advantage of his immortality, he vowed to learn forbidden skills that would normally eat away at the user’s life. 
As he continued on his path, Jiang Ming realized that with his forbidden skills, he could become the strongest. 

As An Immortal, I Only Learn Forbidden Skills

CatABoo

While Jiang Ming was talking to himself, the expressions of the people around him all changed. They were particularly strange.

"Ning Caichen, are you sure these are ancient characters?"

Gu Chi had a strange look on his face, as if he did not believe what Jiang Ming said.

"I know a little about this," Jiang Ming said with a frown.

He knew that Gu Chi was doubting him because he was doubting his own ability. Gu Chi did not think that it was impossible for him to have done some research on the ancient era aside from cultivating.

One had to know that those who studied everything about the ancient era either had reached a bottleneck in their cultivation and could only seek to break through by studying, or were old people who had no other talents.

Jiang Ming's Speculation