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

A young man stood at the door and stared at Jiang Ming vigilantly. He obviously remembered this decisive customer.

He protected his sister behind him and said in a deep voice, "Fellow cultivator, there's no refund for goods sold. Are you going to go back on your word?"

"My brother wouldn't sell you fake goods!" the little girl stuck her head out from behind and said in a childish voice.

"Bro, is someone here to cause trouble?" In the depths of the courtyard, a teenager rushed out with a long saber.

"Don't be rash." The young man in the lead quickly stopped him and looked at Jiang Ming. "Fellow cultivator, Xuanguang City is not an ordinary place. Please don't act recklessly!"

Jiang Ming looked at the three siblings who were extremely vigilant and was a little dumbfounded. He knew that it was a little abrupt for him to suddenly come to their door.

The Opening of the Ruins (1)