Gu Fei lowered her eyes and shook her head: “I don’t know how the gold was purified. The gold, the telescope, and the blood-dropping device were all left to me by my master before he died.”

Xiao Yu frowned: “Your master died?”

This was troublesome.

Gu Fei nodded, trying to look sad: “Master passed away last year. He was a weirdo, but also a kind master.”

She showed a look of reminiscence on her face: “It seems that there is nothing in the world that he can’t do. He has gold, but he doesn’t use it. He wears tattered clothes and begs on the street every day.”

“I felt sorry for him and gave him alms several times. He taught me some punching and kicking skills so that I can protect myself.”

“Strictly speaking, I am not his disciple, because I didn’t learn anything except some punching and kicking skills.”

Xiao Yu frowned more and more. In this way, this girl doesn’t have the skills of her master at all.

“Master gave me the blood-dropping device before he died, and told me that it was very dangerous and could easily hurt me. I should not use it unless I was in a life-or-death situation.”

Xiao Yu leaned forward: “Where is the blueprint of the blood-dropping device?”

“There is no blueprint.” Gu Fei shook her head, her expression very sincere: “Master said that he spent his life’s hard work and countless rare materials to make a blood-dropping device. He lost everything for this thing, and his wife left him because of it. He was furious and burned the blueprint.”

“He originally wanted to bury this thing with him, but he couldn’t bear that his life’s hard work would not see the light of day, so he gave it to me.” Gu Fei sighed after saying this. It was tiring to make up a story.

Xiao Yu was silent for a while, and his fingers gently tapped the table: “In other words, there is no blueprint for this thing, and there is only one in the world?”

Gu Fei nodded.

“What a pity.” Xiao Yu looked at Gu Fei: “Name a price for this blood-dropping gun, I want it.”

As long as he got the thing, he believed that he could always find someone to copy it.

Gu Fei’s face changed: “Young Master, I’m so sorry, I can’t give it to you.”

“My master forced me to swear a poisonous oath when he was dying that the blood-dropping device must not be given to others, otherwise I would die of a ruptured stomach.”

Xiao Yu squinted his eyes and looked at Gu Fei: “100 taels.”

Gu Fei shook her head.

Xiao Yu said slowly: “I’m talking about gold.”

Gu Fei continued to shake her head.

“200 taels–”

Shaking her head frantically.

“500 taels–”

Gu Fei almost couldn’t hold it back. Five hundred taels of gold was equivalent to five thousand taels of silver. It would be a lie to say that she wasn’t tempted. However, she knew very well that the pistol gun must never be leaked out.

If it was leaked out, there would only be more trouble.

She gritted her teeth: “Young Master, don’t add any more. No matter how much money you offer, I won’t sell it.”

“I must do what I promised my master. Young Master, I’m sorry. Although I said that I would repay you if I had the chance, I really can’t do this.”

Gu Fei stood up and made a gesture to leave.

Xiao Yu glanced at her: “Did I let you go?”

Gu Fei’s mouth twitched, and she had to sit down again.

Xiao Yu knocked on the table with one hand and said nonchalantly: “What if I said that I must have this thing no matter what?”

Gu Fei looked at him pitifully, “Young Master, please don’t force me.”

Xiao Yu snorted coldly: “Is this considered forcing you? Aren’t you afraid that I will kill you? If I kill you, that thing will naturally be mine.”