Muzan eyed Ubuyashiki carefully, he had a bottle of green liquid in his hand. "What is that, Ubuyashiki?" Muzan said. "An Antidote" Ubuyashiki said simply. "For what?" Muzan question him. "For demons like you" Ubuyashiki said still looking at him.

Muzan laugh, this was funny for him. Why in the world would demons need a antidote for? They can't get sick except for getting sick of each other. The laugh until something hit me, he stop smiling and stare intensely into Ubuyashiki eyes.

"This is an antidote to turn demons back into humans isn't it." Muzan said and he received a nod from Ubuyashiki. Silence fell as he begin to think. Was this really true? Or was this a trap to kill him. Muzan hated this, he really did.

This was supposed to be a quick in out and now his plan was out the window. He gritted his teeth at the thoughts of an actual antidote to turn demons back into humans. Hundreds of years work all gone to mere liquid in a bottle.

Two sides of Muzan clash as he think. The demon side demanding that this was trap, a joke to trick them into taking poison while the human side beg that they return to human and drop everything like it never happened.

His head began to hurt and by reflex, he attack Ubuyashiki or better yet tried. His out stretch hand was quickly cut off and Muzan was shock. A series of movements and blades told Muzan he was in trouble.

A blade came close to beheaded him and Muzan quickly dodge and quickly move outside. He was meet with a nasty cut from Nezuko's blade as it was covered in poison. Muzan hiss in pain, everything was just sudden.

Everything was happening far too quick for him to understand and all he wanted to do was run but he wasn't having much luck. He curse himself for arriving at such at late hour. He wasn't in a hurry before but now he is.

A couple hours was 8 hours walk and a hour to spare before the sun rise. The attacks keep coming but their was problem, he could not see who was hitting him and then he was suddenly hit with a huge pain in his stomach.

Mitsuri, Rengoku, Shinobu, Nezuko alongside Muichiro who were know for their speed and flexible while the others were support. Tanjiro now was awoken with a strong sense to attack someone, leaving his dear mother and sisters behind before heading outside. Their plead to stop but they were not heard so the mother trail after him.

Muzan had enough and in rage sent out tentacles to hit whoever was hitting him and soon everything stop. As quick as it happened it stop. His wounds was heal but his clothes and blood that was on him made him look beat up.

He realizes he was push back quite a distance from the base and can barely see. He was surrounded by bush and trees and couldn't see, smell or hear anyone. The poison was working and Muzan didn't know.

Shinobu poison was to slow down all 5 senses greatly while Nezuko used poison from Lady Tamayo to slowly stop regeneration and slowly rot away Muzan body. All of this happen without Muzan knowing nothing.

The king of demons didn't realize he was seeing the last hours of his horrible life that he had work with blood and sweat of others. Muzan felt his anger rise, he was right about this being a trap. He wanted to tear Ubuyashiki and his family apart.

(Let's go Triple update)