Undertale starts with Sans' abilities

"Bye now……"

The possessed Dr. Efes raised the dagger in his hand.……

""Pa pa pa..."

A round of applause rang out

"Really good, it's really well-pretended."

Dr. Efes turned around instantly and pointed the dagger at the source of the sound.

……

After seeing who was coming, Dr. Efes sneered and said,"I was just about to go find you, but I didn't expect you to come to me."

Liu Yang walked out from the shadow behind Dr. Efes.

"Really? Are you so confident that you can defeat me?" Liu Yang said with a playful smile.

Dr. Efes sneered:"I have prepared many experimental subjects here for me to possess."

"I have enough confidence to control you two"

"Hehe..." Liu Yang laughed mockingly,"It seems I am going to disappoint you."

"Look behind you.……"Liu Yang pointed behind Dr. Effis

"Trying to trick me into turning around? No……"

Dr. Efes suddenly felt a chill on his neck.

"You... How is it possible?!" Dr. Efes looked at the purple long knife beside his neck in surprise.

Behind him, holding the knife in his left hand and the ketchup in his right hand, he joked:"My ketchup is limited edition, how are you going to compensate me?"

But...

Dr. Efes, who was shocked just now, sneered again

"Luckily, I have a backup plan.……"

"There are seven test subjects in this lab that I can possess."

"It's no use if you kill me, the only one who will die is the owner of this body"

……

Yuan Shan hesitated after hearing what Dr. Efes said.

Kill him? If he kills him, maybe the real Dr. Efes will die.

Don't kill him? Letting him go will only make him return to the mountains, and he may even try to get close to his friends and then hurt them.

Should he kill him or not?

"Since you are so confident, why don't you check the seven test subjects?" Liu Yang's face was not panicked at all.

When Dr. Efes heard this, he immediately felt an ominous premonition and immediately detected the breath of the seven test subjects.

Without exception, all of them were destroyed.

……

"Damn it! I don't know how you did it, but I don't believe you dare to kill me."

Dr. Efes said, pretending to be calm.

"Oh? Who said I have to connect you and the owner of this body to kill you?" Liu Yang laughed mockingly.

"this……"Dr. Efes's ominous premonition became stronger and stronger.

Liu Yang stretched out his hand and used gravity control to lift Dr. Efes up.

"【[Defective Purification Bead] Activate!"

It was as if a raging fire was burning inside Dr. Effis' body, and the power of hatred slowly drained away.

"Ahhh! How could this happen?!"

"What kind of power is this?!"

Dr. Efes screamed in pain, and hatred gradually separated from its body and condensed into a black ball.

Yuanshan took the opportunity to take out an experimental jar and put the liquid of hatred power into it.

The hatred power rampaged in the jar, trying to escape from the container that restricted it.

But how could the things Liu Yang exchanged from the system be easily destroyed.

Liu Yang and Yuanshan were not in a hurry. One of them sat leisurely on a chair with his legs crossed and ate tiramisu cake. (Liu Yang likes tiramisu very much, which he exchanged in the system)

The other one was showing off the limited edition ketchup...

After a while... the hatred liquid in the experimental jar finally gave up struggling.

"How did you find me?"

……