(I find it annoying that FanFiction doesn't let you see all of these different fonts that I'm using to show the difference in who's speaking like for Sans I'm using Comic Sans MS, but it just comes out as bolded default text...)

[Spoilers] This WILL contain key plot points for the Neutral and True pacifist Route. Undertale is game best played blindly so unless you either don't care or have already played the game DO NOT READ THIS FANFIC! or else... you're gonna have bad time.

~The Secrets We Keep~

~Chapter 1~

*10 Years Later*

A lot has happened over the last 10 years. Frisk was reunited with her adopted sister, Chara, and now both of them live with Toriel who remarried Asgore. Undyne and Alphys are engaged and they plan on having their wedding soon. Sans and Papyrus live by themselves, but often visit Frisk, especially Sans who visits almost every day. Undyne is the head of the Police department due to her incredible skill in battle. Alphys works for a science center in town where she works in the field of not only monster anatomy and physiology, but humans too! Papyrus is a chef at a local Italian restaurant. All of the townsfolk agree that Papyrus' cooking is the best they've ever tasted. Sans works late at night perfecting his jokes with the townsfolk, and he gets mixed feelings on his jokes, but he's been getting better. Frisk still works as the monsters ambassador, making sure that monsters get just as much freedom and are treated Monsters in general have been mostly accepted in the surface world there are now laws that grant monsters the same rights and freedoms as humans.

One day Frisk was walking throughout the city with Sans and Chara. The decided to take quick stop at Grillby's new restaurant in town. "hey everybody!" Sans exclaims announcing himself to the other customers. The crowded bar was quickly filled with 20 voices at the same time. "Hiya Sans!" "'sup Bro" "Hey man! How's it going!" Frisk also waved to the regulars whom, in response, commented on how beautiful she looked and some actually started to flirt with her. This made Frisk blush greatly, but Chara was a little bit jealous. Why does she get all the attention anyways! The three of them sat on the stools in front of Grillby. Sitting so close to Grillby caused Frisk to feel most of the emitting from him. The heat was actually quite soothing to her, especially since the winter season is rolling around.

"what do you two want, a burger or fries?" Sans asks looking at both Chara and Frisk. Chara sighs, "I don't care..." Frisk turns to Sans and signs, "Fries" Sans nods his head in approval,"i guess you could say you're all fried up now." Sans gives Frisk a wink as he chuckles at his own joke. Frisk smiles from ear to ear trying not to laugh so she can keep her composure, after all she is an adult now and she should be acting like one. Chara groans in response, "NEVER do that again." Sans turns around to face his hater and says, "awe shucks kid, i know my jokes aren't all that punny, but i least it doesn't get under my skin." Frisk couldn't help but snort as she laughs hysterically at the pun.

"two orders of fries and a burger for the kid." Sans tells Grillby who's washing a glass cup with his handkerchief. Grillby puts the cup down and tucks his handkerchief in his shirt pocket as he walks through the doors into the kitchen to deliver the order. Frisk turns to Sans and signs, "Doesn't it seem like he's always cleaning an empty glass with the same handkerchief?" Sans cups his boney hand around his chin and places his index finger under the nasal bone, "that's a good question frisk... maybe it's already clean, he just cleans it to pass time..." "Does it REALLY matter, I mean who cares why, if you're going to question something as dumb as that, you might as well ask why isn't he DEAD yet?!" The whole tavern went silent from that remark. Chara started to feel an incredible burning sensation coming from her right shoulder. "YEOW!" Chara exclaimed as she jumps out of her seat and lands face first onto the cold floor boards. She turns to see Grillby standing right there on the opposite side of the counter. "Did your parents ever teach you manners? It's quite rude to talk about someone behind their back. However, if you MUST know, why do you think I'm always wearing a tuxedo?" Grillby opens up his dress shirt to reveal a massive amount of firewood taped around the inside of his shirt. "You see flames, such as myself, require a source of fuel in order to keep burning. So I replace these weekly in order to keep my flames going." Grillby leans forward closer to Chara's face "Is there anything else you want to say to my face?" Chara stays silent as she gets up and brushes her burnt shoulder. "Good. Now be a good girl and e-."

Chara quickly got up and socked Grillby in the jaw, which for some reason actually managed to hurt Grillby, the unexpected attack caused Grillby to fall the floor with a *THUMP* Chara grabbed her burger, taking a bite out of it and stomped out of the bar making a pouty face. Frisk rushes off her stool to help the fallen bartender off the ground. Frisk looks over to Sans and motions her head towards Grillby. Sans knew exactly what she was asking. Frisk signs to Sans who translates for Grillby, "are you alright!? i'm so sorry! please forgive chara, she can be... aggressive at times." Frisk then looks over to Sans and signs, "Can you please go find her?" Sans nods and uses his 'shortcut' method while Frisk helped Grillby onto his feet, before placing the money down for their meal and left to look for Chara.

Frisk and Sans spent an hour or so searching for Chara before asking their friends for help. Soon enough the Toriel, Asgore, Papyrus, Alphys and Undyne with a squad of police came to help search the city for Chara.

The search went on for another hour and a half before Frisk and Sans found Chara. Chara was hiding in an alleyway not far from Grillby's. "Stay here, I'll go calm her down." Frisk signed as she headed in. Sans propped himself against the wall and waited. Five minutes had gone by and there was no sign of Frisk or Chara. Something wasn't right. Sans turned the corner to the most unsettling thing he'd ever seen. Frisk was laying down on the cold, hard concrete. Blood spilling from multiple spots on on her body. The color draining from her face. Then there was Chara, crimson blood splattered all over her green and yellow striped sweater. She was holding a Worn dagger with blood almost entirely covering the blade. Her face however, was the most unsettling. Her eyes were gone and some kind of black goo was running down her face coming from her eye sockets and she had the creepiest smile. Tears were welling up in Sans' eye sockets before he burst into tears mourning his fallen friend. "TIME TO RESET. DON'T YOU THINK?" Chara asked rhetorically. Sans stopped crying as his left eye was replaced with gleaming blue eye that illuminated the whole alley way with a bright blue color. "YOU SON OF A BITCH!" Sans exclaims as he charges up his Gaster Blaster attack, "kids like you should be burning in hell." Megalovania can be heard playing in the background. Sans fires his Gaster Blaster, he looks above Frisk's corpse to see her soul exiting her body. The soul can be seen pulsing in the air, then it stop ascending about three above the corpse and text appeared in front of it saying, "GAME OVER", Sans looks over at Chara whose eyes have returned to normal, but she still has that creepy smile on her face. She waves goodbye just before an explosion of white light…

You cannot give up just yet…

Frisk! Stay determined…

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