"I said get away from me!" Chara screamed.

The young girl lunged at him taking a few swings which Sans dodged accordingly. Normally Sans wouldn't worry about someone with a cheap table knife, but considering how this was the same girl that in another timeline had managed to break Undyne's neck using a torn note book, and smash Papyrus's face in with a frying pan, then she wasn't someone to mess with. Moreover, he was not entirely kidding about only having one HP considering his luck, one solid punch and he would possibly find himself in a boneyard. (heh heh boneyard). Man he really did need to participate in more of Undyne's work out sessions.

Sans dogged every swing, but unlike in the judgement hall, he made sure not to attack back. It was definitely safe to say however, that she had a lot more stamina.

"Whew, Dang kid, you really like swinging that thing around," it eventually got to the point where he could not keep up with things. He just closed his eyes and accepted fate.

"Well maybe in the next timeline kid,"

Slash.

He opened his eyes to the sound of a knife falling to the ground. When he looked up, he saw Chara fall to her knees and gasp.

"No Sans, don't die. I'm sorry please."

He looked down to notice that there was a huge gash in his shirt.

"Kid, I'm alright, I'm alright. You just ripped through my shirt that's all."

Chara let out a kind of half baffled half relived grin. Sans too gave a nervous smile and whether out of a weird attempt to cope with the situation, or out of a twisted sense of humor, they found themselves laughing.

Sans breathed a sigh.

"Whew, I guess you can call that a close shave huh huh?"

"Yeah, sniff I guess so."

"Yeah. How bout I grab that knife huh?"

Chara nodded. Sans grabbed the knife and put it in his pocket. The two of them both got in their seats. The other patrons stared at them before going back to normal business.

"Sorry for causing a scene Mr. Grillby sir."

"Pfft no biggie mates, you ought to see the royal guard on Royal Ribs Night. It's like an episode of Punch and Judy.

Grillby went back to his work, but Chara let out a sigh

"It happened again."

"That feeling again?" Sans asked

Chara nodded.

"What's it like? How can you tell when you're about to lose control?"

"It's…it's hard to explain. At first I'm hesitant, but then I get into the battle. Like I get into a rhythm and I kind of enjoy it you know. I like that feeling of danger."

"Eh so you're an adrenaline junkie. Undyne can relate to that."

Chara nodded. "But then that feeling turns into something gross. All of the sudden, I just get this feeling of anger o-of rage, like this insatiable need to kill…everything blurs out and by the time I come to, I see dust on my hands, and I know…I've killed someone."

"Hmmm, it's interesting you say that, Undyne said that you…er frisk dealt with the same issue just before she killed her.'

Chara gasped in shock "How? I mean if I killed her but she's alive, that means I must have reset. She's not supposed to be able to remember anything. The only monsters I know that remember resets, are you and Flowey."

"Well I guess you can add Undyne to that list,"

"Are there any others?"

"Nope just me and Undyne and frankly with her it's a recent thing."

"Is it possible that…maybe they remember because I've done it so many times?"

"Maybe…Maybe it only happens to monsters that have Deter…." Sans found himself stopping mid-sentence."

"What?" Chara asked.

"Nothing…um tell me something kid…have you had nightmares…of a monster that…I don't know may look something like a kid."

Chara's eyes widened. "How did you…"

"Call it a lucky guess. What does it look like exactly?"

"Um…it's a girl about my age, she has dark brown hair, kind of yellowish kin, and she wears a blue and purple shirt. At first she looks normal, but then her eyes become like these big black holes.

Sans took another swig of ketchup contemplating his own thoughts

"So to Frisk, Chara is the monster, and to Chara, Frisk is the monster. Or is one monster terrorizing one girl? "

So far, I'm seeing two ways of looking at this. Either this human is in fact two humans sharing one body, or this is fact one human suffering from sort of dual identify hex. Considering her little presto chango act I'm going to go with the latter, but even if that is the case, whodunit? The only person I know capable of that kind of magic is Asgore. And another thing, are we dealing with a Frisk that has Chara's memories, or a Chara with Frisk's memories.

I mean it make sense if Asgore had put Chara's memories inside Frisk, I mean they look similar enough maybe he wanted desperately to bring his daughter back and he was willing to use a surrogate body. Is it a bit cruel and irrational, yeah but I think we all surprise ourselves with how far we are willing to go when we're struck by grief. Sure as heck knows I did.

But what if it's the other way around. What if Chara has Frisk memories, and if so why? Obviously I never got to see how things always went down between Frisk and Asgore during the genocide routes being dead and all, but I'm sure there were probably just as many times when he used the souls to fight back as there were times where the kid would have just one-shoted him. Maybe he inserted the memories of a human from a pacifist timeline in an effort to make herself remember what she once was.

Which leads into my final question. What's causing Chara to go crazy? Obviously up to the point she died she wasn't like this, or At least not in this universe, but at some point between dying and coming back something caused a screw to come loose somewhere. Is it PTSD, another soul trying to make her life heck, or is it too much determination for one little girl to handle. I mean monsters to show rather physical blatant signs of determination overload because their bodies can't handle it even when their mind can due to having the lack of physical matter. I mean when you break a monster down to its bare components your lucky to have enough dust for an ashtray you'd need to somehow fuse at least two monsters together to create a normal body to hold all of that determination, or go the mad scientist route and try to alter the physiology of a monster. Maybe it's the inverse for humans. Maybe their minds can't handle the stress of all that determination even if their bodies stay perfectly intact. Obviously the brains don't melt, but maybe like sensory overload. If that's the case, then we'll just have to handle things one day at a time. I mean considering how many resets Chara and I have been through, something tells me if she hasn't gone completely coo coo by now, she isn't going to. Dang it all of these questions and theories and jack squat regarding solid answers

"Sans?" Chara asked.

Sans snapped out of his thoughts.

"Yeah kid."

"I have…I mean Frisk has a question that she has been meaning to ask you. Do you mind?"

"Shoot kid. Ask me anything."

"Why were you an Undyne fighting that night? The only other time you fought like that is when were fought in the judgement hall."

Sans eyes once again shrunk as sweat dripped from his brow.

Jeez kid ask me anything but that.

"Well…She and I had a disagreement, and I lost my temper."

"I got that much, but why?"

Sans just stuttered unable to get a sentence edgewise. He'd probably have made himself look like a total idiot had he not been saved by a certain gurgling sound.

"Heh, would you look at that, I got to use the little skulls room. I'll be right back."

Sans darted to the restroom as quick as he could. Chara just sighed. She wasn't an idiot. It was pretty obvious he was hiding something.

"Don't let him bother you mate." Grillby said handing Chara another refill on the shake. "For as long as I've known him the skull's always been a bit timid."

"When did you first meet him?" Chara asked

"Well….you want the long story or the short?"

"I can go for the long."

Grillby chuckled. "Well in that case, excuse while I pour me some of that midnight oil real quick.

A/N: I think I'll go ahead and end this chapter here since the flashbacks about to come up could probably be chapters in their own right. I hope this story is still somewhat smooth this story actual kind of evolves as I right it, and as I explore more of the Fandom, well ideas tend to grow, expand and change. Trust me, this story bears little resemblance of what I originally planned at the time I started writing. Actually the whole Sans thinking to himself scene is actually very much like how brainstorming this thing has been like (Obviously attempted editing in terms of style to fit more with the story) Either way, I've had fun writing, and I hope you continue to have fun reading.