Chara's journey was long but short. They killed everybody, one by one. Papayrus, Undyne, Mettaton, almost everybody who didn't evacuated was Killed by Them. In the end of the road They meet True SANS.

'heya.' Sans started talking ' you have been busy, huh?'

Short silence' so, i have a question for ya. '

'do you think even the worst person can change? that everybody can be a good person if they just try?'

Chara took one step

'heh heh heh heh heh' Sans thought that he got the answer of the question.

'well, here is the better question for ya'

Sans' eyes turned into pitch black 'do you wanna have a bad time? because if you take another step forward... you are REALLY not going to like what happens next. Frisk felt the serious voice Sans used but Chara didn't care and took one more step.

'welp' Sans prepared to fight. ' sorry toriel, shadow, but this is why i never make promises

Sans' aura surrounded JUSTICE HALL.

Sans started talking ' its beatiful day outside... birds are singing, flowers are blooming, on days like this, kids like you, s h o u l d   b e   b u r n i n g   i n   t h e   h e l l .' 

Sans started to use his grab and bone attack but Chara easly dodged.

Sans impressed, in that timeline they didn't do that fight before, but Chara was a multiversal demon. Chara did this figth more than once in other universes.

Sans and Chara's fight tas tiring but Sans spent too much energy in his final attack.

Sans fell asleep after final attack. Chara striked with a tricky slash, Sans dodged first one but second attack hit Sans.

At least Chara thought but a magic shield blocked her attack.

'Sans, go' those two words were enough for Sans to teleport.

'Hello Frisk, my child.' That was impossible because owner of that voice was ...

' was 'dead' the word you were looking for' Frisk was scared because She knew he was stronger than Sans. But Chara was more ' interested'. She created two Echo; one for Chara and one for Frisk.

'Well Frisk i am sorry because i killed you in another timeline' Frisk's body glitched and showed the true face of that demon

Frisk's echo screamed, Charas' laughed to scream.

'I am sorry dad' Frisks Echo talked slowly ' but i am not controlling this body'.

Shadow prepared a wind orb. ' i know kiddo, but im sorry that i must kill you again to take that demons SOUL.'

Other Echo started talking' WHAT, YOU KILLING ME HAHAHAHAHAHAHA ' voice of demon creeped fur of Shadow, Chara's Echo continued 'YOU COULDN'T DO A SINGLE ATTACK LAST TIME SHADOW, WHAT MAKES YOU SO CONFIDENT TO DEFINATLY KILL ME? '

Shadow started to talk and tone of his voice scared Chara ' BECAUSE, DEMON, THE ENERMIES YOU FOUGTH ARE MISCALCULATED YOUR ABILITIES. UNDYNE CALCULATED THAT YOU WILL KILL EVERYBODY ONE BY ONE, SANS DID A CLOSER SHOT LIKE A UNIVERSAL RESET BUT I KNOW WHO YOU ARE DEMON AND I KNOW YOUR POWERS, ABILITIES AND WEAK POINTS. I KNOW SOMETHING ABOUT MULTIVERSE SLASH WHICH DESTROYS THE MULTIVERSE AND MAKES THE USER DROPS INTO VOID, AM I RIGHT?'

Chara really freaked out that second, because not shadow's voice but he knew MULTIVERSE SLASH too. When did Chara freaked out before that time? Maybe her first Sans battle, but She knew this will be 'DO OR DIE' situation. 

'NO MORE SAVE, NO MORE RESET, JUST YOU, FRISK AND ME, DEMON '

Shadow's aura surrounds judgement hall.

'I WILL BE YOUR JUDGE , JURY AND EXECUTUNER.' Chara prepared to counter

'WELCOME TO YOUR SPECIAL HELL' 

SHADOWS LAST STAND

Chara attacked but the shield which protected Sans blocked the attack

'THIS JUDGEMENT HALL WILL BE YOUR GRAVE' Shadow started with wind slashes Chara took one hit (88/92) from slashes.

Chara though attacking him can't work because of that shield so Chara used CHECK.

SHADOW ??? ATK ??? DEF 

* LAST MONSTER ON YOUR ROAD 

*MASTER OF WIND ATTACKS

*USES YOUR DUST TO ATTACK OR BLOCK 

*DON'T REST BEFORE YOU ARE DEAD

*KNOWS EVERYTHING ABOUT YOU

'it seems like your sins are crawling on your back huh' Shadow used Toriels fire totem attack.

those flames were hard to dodge but Chara dodged and tried to slash him once more but the shield was there, She thought that she must get rid of the shield.

Shadow used Papyrus' Lenght-Changing bone attack, Chara didnt saw that attack because she didnt used pasiffist route before. she took some damage too ( 78/92 HP)

Chara used Check again and scared what she saw.

SHADOW XXX ATK XXX DEF

*MEANING OF TRUE HELL

*CAN USE EVERY ATTACK HE SAW LIKE ITS ORJINAL MASTERS 

*CAN CONTROL DUST WITH HIS MAGIC

*CAN SEE MEMORIES OF MONSTERS WHO TURNED INTO DUST

Chara was smart enough that can understand this means Shadow can use every attack that owned by monsters she killed before, and she destroyed fair share of timelines.

Shadow used Mettatons REWIND attack with his GUST SLASHER, She dodged the normal mode but took hit from rewind mode(66/92).

She used all items while fighting Sans so she need a no item figth for this.

This would be hard but she must do it for MULTIVERSE SLASH to find that man.

'i know you are trying to go to void but i dont understand why? well some questions must be stay unanswered' Shadow started to create throwing knives to throw Chara. She dodged from some but three of them was tricky (52/92).

'This is bad if he can delete me from existence i must be mort careful ' Chara think about a strategy to break that shield as fast as she can.

She tried a tricky slash like she used to finish Sans' job.

Shadow's Shield blocked first one but second one made a crack.

Crack restored itself but Chara found Shield's weakness, it becomes weak with every slash but she must do those slashes in a row.

Shadow saw that crack too but its too late for that demon. Because he was going to use HYPER GONER Asriel used, he knew that attack was 2HKO move and one of the hardest attack to avoid.

Chara got hit from HYPER GONER (1/92) This is ALL OR END for Chara, so she started to slash.

1 HIT, Shield sucsessfully blocked. 

2 HIT, Shield started to crack.

3 HIT, cracks grew bigger.

4 HIT, cracks surrounded the Shield .

5 HIT, Shield destroyed in million pieces.

She needed to one more hit to kill Shadow once and for all but something seems like holding Chara. She looked down and saw what Shadow planned. 

He turned his Defence into Dust to trap Chara.

Shadow made Chara inmobilized to grab THEIR SOUL.

He sucsessfully divided Chara's and Frisk's SOULs and grabbed Chara's SOUL to make sure her soul wont be shattering and put Frisk's SOUL in her place.

*********************************************************************

unknown time later

*********************************************************************

Shadow had control of the DUST, but he can't do anything about destroyed universes before him.

Frisk awoken in similar place, when she looked around she saw some yellow flowers

'great' frisk though that was another reset but when she looked her stat she saw the stats before Sans fight but her own name

FRISK LV19 HP 92 ATK 99 DEF 99

But she saw something different too

WEAPON : WORN DAGGER

ARMOR : HEART LOCKET

She started walking to HOME but in the road she saw nobody 

'Like Chara left'

but in HOME, she saw Shadow, and she hugged Shadow

' slow down kid i saved you from that demon but i am a bit tired '

She signed' where is everybody who killed by Cha...'Shadow grabbed Frisk's hands 'Kid that name is taboo, WE WILL NOT TELLOR SIGN HER NAME, at least not on my watch'

Frisk asked 'why'

'because Frisk, She is a demon WHO comes when HER name is called do you understand?'

Frisk signed 'yes'

'Good now please meet me in snowdin town ok, Frisk i want to show you something'

She signed 'ok' and walked down to the basement

After kid is far enough he called somebody

" is kid in the way?"

' yes, is everybody is in position?'

"absulutely"

'tell everybody prepare to phase 2'

"ok, bye"

*click*

*********************************************************************

well that was a bit longer than i imagined 

and THE BEST RETURNİNG FROM DEAD OSCAR GOES TO SHADOW.

Shadow controlled his dust to make a perfect copy of himself to make himself 'killed by DEMON'

And copyrights:

UNDERTALE and all of its characters belongs to TOBY_FOX

SHADOWTALE and Shadow Belongs to me

NEXT EPISOE WILL BE PHASE 2