When Liu Ruyan let the King of Hell into the house, she was originally very satisfied with her disguise, but when she saw the King of Hell's expression change from shock to coldness, her originally proud spirit instantly disappeared. She couldn't help but feel a trace of fear in her heart.

When Liu Ruyan saw that the King of Hell's gloomy face that was about to drip water on her, she couldn't help but retreat. She said to the King of Hell with a panicked voice, "You, what are you trying to do?"

The King of Hell saw Liu Ruyan retreat, but he closed the door behind him. Then, he approached Liu Ruyan step by step. A cold light flashed in his eyes, and a faintly discernible killing intent exuded from his body.

Liu Ruyan felt like she was going to suffocate as the murderous intent from the knife was released. Although the knife was placed on her neck in the past, he didn't release any killing intent at that time. It could be said that he was only a threat to her at that time!

But now, it was different. Although the King of Hell didn't take out his knife to block her neck, the killing intent coming from his body was even more terrifying. It was even more terrifying than his shiny long blade. He was truly determined to kill!

After Liu Ruyan retreated several steps, her body leaned against the wall; she had nowhere to retreat to. The moment she leaned against the wall, she mustered her courage and pulled out a knife from her left sleeve. Then, with her eyes closed, she stabbed at Yama Minamiya!

"Humph!" You're finally out of it! " The cold voice of the King of Hell resounded in Liu Ruyan's ears like a demon from hell. When she heard the King of Hell's voice, Liu Ruyan felt a sudden pain on her waist, and then her entire body froze.

Liu Ruyan knew that she had most likely been hit by the King of Hell's acupuncture point. She had heard about this kind of acupuncture point from others before, and she had always wanted to learn this martial arts, but she had never had the chance to learn it. She never thought that the King of Hell would know this martial arts and even use it on her!

After tapping Liu Ruyan's acupoints, the King of Hell grabbed the sleeve knife in Liu Ruyan's hand and placed it against her face. The icy coldness was like a venomous snake, instantly giving Liu Ruyan goosebumps!

After putting the sleeve knife on Liu Ruyan's face, Knife King Yan coldly said, "Your little face can actually change from one to the other. Today, I'll use this blade to pull it open and see what your face is made of!"

Hearing Knife King Yan's words, Liu Ruyan cried. She cried and said, "Are you crazy? Is this also a violation of your taboo? "

"Hehehe .." It doesn't matter who you change into, this young master doesn't care. What I care about is who taught you this superb disguise technique! And who ordered you to come to this young master's side! I wanted to know these two questions before you died! It doesn't matter if you don't want to say it! I will let you bring me to the Underworld in secret! " The King of Hell had steeled his heart. In his opinion, there were too many questions on Liu Ruyan's body. He couldn't let them go.

"I, Liu Ruyan, can swear to the heavens that I wasn't sent to your side by anyone! I didn't even know you before! "As for this disguise technique, it was taught to me by my mistress's husband. He used to have some reputations in the martial arts world, but after meeting my mistress, he decided to go into seclusion. After he went into seclusion, he joined my father's army and became a general. What happened in the martial arts world was taught to me by him and my mistress!" Liu Ruyan told the truth with tears in her eyes. She was truly afraid, this King of Hell was like a lunatic, suspecting her from time to time. She could only tell him the truth, otherwise, she would really be afraid that King of Hell would make a move!

"You even swear to the heavens! No matter what you do, it's useless! This young master will not believe your words! " The King of Hell was determined this time. No matter what Liu Ruyan said, he wouldn't let her off!

After saying that, the King of Hell took out his sleeve knife to give Liu Ruyan a quick death!

Just as the King of Hell raised his sleeve blade and was about to stab Liu Ruyan's chest, a faint voice suddenly called out, "Stop!"

He followed the direction of the voice and looked over. He saw that the originally closed window of the room was now wide open and a black-clothed man wearing a hideous mask was standing outside the window, facing the eyes of the Demon King!

When he saw that person, the corners of the King of Hell's mouth curled up into a charming smile. He used his sleeve blade to point at the man in black. He then pointed at Liu Ruyan and said to the man in black, "It seems like she is one of yours."

That man in black shook his head and said, "This girl isn't one of us. It's just that I have some friendship with his father, so I don't want to see her die in your hands."

Hearing this, the King of Hell nodded and said to the man in black, "Since you're not your man, then don't meddle in other people's business. It seems that you've been following me along the way. What business do you have this time?"

The black clothed man jumped into the room, casually sat on the bed, then said to the King of Hell, "Since you were young, I have been keeping an eye on you, it's just that you didn't notice, I still have to protect this girl. Didn't you always want to know about what happened that year? If you let her go, I'll tell you about what happened that year! "

"Is that true?" After the King of Hell heard the black-clothed man's words, his pupils contracted violently and his body involuntarily trembled. The hand that was holding onto his blade cracked loudly!

"I don't need to lie to you. There are some things that will be difficult to deal with even if you bury her in your heart for too long. Let her go first, then we'll find a place to slowly talk about it!" The man in black said to the King of Hell calmly.

"It seems like the person behind you wants you to talk about this. I guess the person behind you can't help but want me to take action!" A bloodthirsty glint appeared in Knife King Yan's cold eyes. His brain was working fast, suspecting the abnormal behavior of the man in black tonight.

Do you want to know? If you don't want to know, I'll leave now, but as for this girl, I think it's best if you don't kill her. Killing her will bring you more trouble, and she's also an innocent person! You, the King of Hell, have killed countless people, but you don't seem to have killed any innocent people. After the man in black listened to the words of the King of Hell, he returned the words of the King of Hell. After he finished saying those words, he got up from the bed. It seemed that he was really going to leave!