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 did not expect Master Long to give him such an important task. He suddenly became serious. "Shouldn't this sword be given to Long Qingqing or someone else in the Long family? Why did you choose me?"

Master Long said helplessly, "There are fewer and fewer people in the Long family who can inherit the throne. Long Qingqing has never undertaken such a big mission. I'm afraid that she will be threatened if she does. I also hope that she can grow up happily and not suffer from the Long family's internal conflicts."

Seeing that Master Long had said so, Jiang Ming could not continue to say anything in refusal. He asked again, "Since it belongs to the Long family, can I use the sword that is compatible with the Dragon Sword?"

"Of course." Master Long's eyes lit up. "This sword has nothing to do with the family. As long as the sword accepts you, it should be fine!"

"Where is the White Demon Tower?"

Jiang Ming looked at Master Long.

Special Mission