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

Jiang Ming's barrage of questions left the black sword speechless. After a long while, it let out a deep breath.

"Bro, I was wrong. I was a little muddle-headed. I was anxious to understand the truth behind the destruction of the world in the era back then, so…"

"You don't have to explain to me. You only need to know that our goal is the same. We are both fighting against the calamity," Jiang Ming said calmly.

The black sword wanted the world and all living beings to be safe.

It wanted to live. It could not have an immortal physique, but in the end, it died because of a catastrophe, right?

Upon hearing this, the black sword became silent. After a while, he said in a particularly serious tone, "Bro, thank you! If it weren't for your words, I wouldn't have returned to my senses. I'm a little stupid. These are things that I shouldn't have done!"

Ultimatum