Undertale – Aftermath

Chapter 4: Training

DISCLAIMER: Undertale belongs to Toby Fox


*That afternoon...

Frisk is watering the flowers while Asriel is sitting under a tree in front of their house, both Asgore and Toriel are away, meeting with the citizens of the underground, discussing on how to approach the humans above.

"So..." Asriel leans his head on the tree trunk, "Pretty quiet day, huh?"

"No more fighting." Frisk replies quietly.

"Yeah, it's kinda boring." Asriel scratches the fur on his neck, "Wonder what can we do with all the adults discussing the surface expedition."

"Cooking?"

"Not the best idea."

"Someone can help you cook."

"Who, Papyrus? That guy is too friendly, even for cooking." Asriel closes his eyes, enjoying the breeze in the air.

"Hmm..." Frisk thinks for a while, then came up with an idea, "I got it!"

"Got what?" Asriel opened one of his eyes.

Frisk pulls out their handphone began texting.

"Who are you texting with?"

Frisk giggles, "You'll see."

"Judging by your smile, I have a bad feeling about this..." Asriel is suddenly filled with uneasiness.

*About an hour ago...

Undyne and Papyrus is standing guard on the front entrance of a building. Undyne is wearing her knight armor, wielding an energy spear. While papyrus is wearing his usual "Battle Body" paired with a bone sword, which a sword made of bones.

Inside, one can hear Asgore' speech on how to prepare for the surface:

"Many years ago, our ancestors... Well, your ancestors, to be exact, I do not age."

Some laughs rose up from the crowd inside.

"Let us be reminded of our history, we waged war with the humans, they are afraid of our magics, believing that we would absorb their SOULs if we are not driven away. Then they attacked the monsters mercilessly, leaving no one behind, it was a massacre. Monsters retaliates, only to find that humans have a stronger DETERMINATION than monsters, thus ending in our defeat and the exile of the monsters. They drove us to the underground beneath Mount Ebott, and their magicians sealed us here with an indestructible barrier."

Asgore clears his throat, "We are forced to make the underground our new home, and began building our new monster kingdom which I dubbed... Home."

"Man, that old man's really suck at names." Undyne smirked.

"Well..." Papyrus replied, "At least it's something, I guess..."

"After we find peace in the underground, we decided to expand our kingdom further down the grounds of Mount Ebott, we've built a capital in the deepest part of the earth, which is called... New Home."

"You really should think of other names, Fluffybuns." Toriel remarks at Asgore' name choices.

Burst of laughter came from the crowd.

"Uh, right. By the way, now that the barrier is gone, we can finally come up to the surface. But we need a plan, a plan that will bring peace among humans and monsters, we will live together in peace once again."

Asgore speech goes on and on, Undyne stands her guard, while occasionally yelling at Papyrus to stop falling asleep. Suddenly, her phone rings a tone. She pulls it out, the screen shows "New Message" on the top left corner. Decided to take a quick look, the message reads:

From: Frisk [DeterminedHuman]
To: Undyne [StrongFish91]

"Need help with Asriel. Getting rusty. Need training."

"Well, this is interesting." Undyne puts up a big smile.

"Um..." Papyrus turned his head to Undyne, "Why are you smiling?"

"Are you ready for a special assignment, Papyrus?"

"A special assingment, for me?" Papyrus' suddenly rose up.

"Yeah! And it's VERY challenging you won't even believe it!"

"I'll believe it when I do it!"

"I need you to guard the conference while I was gone, I'll be back in three hours or so."

"Three hours? Worry not, I, the great Papyrus will stand guard here for as long as needed?"

"You sure about this?"

Papyrus just nods his head.

"You can ask Sans for help if you want."

"No! I can do this myself! Besides, if I ask my brother to help..." Papyrus puts an annoyed expression, "He'll just sit around doing nothing or fall asleep."

"Hey, bro." Sans appeared out of nowhere.

"Ack! Where did you come from?!" Papyrus is startled by Sans' sudden appearance.

"A shortcut." Sans winked, "I heard you need some help."

"No matter, if you're here to help, you better stand watch very carefully, and stay vigilant!"

"No problem." Sans pulled out a chair and sit on it while drinking a bottle of ketchup.

"Ugh..." Papyrus slaps his face.

"Okay, I'll leave the rest to you two." Undyne heads out to meet the prince and his... Best friend?

*Later on...

Frisk is still taking care of the flowers, they are arranging the flowers on the side of the garden this time. Asriel seems to be fighting to stay awake, the calm and quiet finally brought him into a sleeping state, until something suddenly wakes him up in shock.

"Wake up!" a distant voice is not the only one that wakes him up, it's followed by a blue energy spear thrown just above his head, cutting deep into the tree trunk.

"What the-" Asriel stands up and pulled out the spear, then stares at it in confusion.

A figure approached from the distance, revealing Undyne still in heavy armor, "So, you need some lessons, eh?"

"Uh..." Asriel just stands there, still confused.

"Well, if you want a lesson, I got two of them: The easy, relaxing cooking lesson, or the exciting and HARD training session!" she then laughs like a maniac.

"Frisk!" upon realizing what caused this, Asriel turned his head on Frisk, who quickly retreats into the house.

"Good luck." they said before closing the door.

"Now, which one first, prince of the underground?"

Asriel is left speechless, still holding the energy spear in his right hand.

"What? Frisk got your tongue? Wait, actually, that's kinda cute." Undyne then pauses for a moment, "Well, since you got that spear on you, why don't we test your fighting skills?" Undyne summoned several energy spears beside her before launching them to Asriel.

"Whoa!" Asriel grunts as he dodged the spears rather easily, "That was close."

"Heh, you're speedy, I'll give you that." Undyne reaches her left hand towards Asriel, "But, how can you handle THIS?"

Asriel' SOUL comes out, it turned to the color green after Undyne does a gesture, "What's that gonna do?" Asriel lifts his head to Undyne.

"Heh heh." Undyne smirked, "When you're Green, you have to face danger head on. If you don't stand your ground, you won't last A SECOND against me." she then pauses again, "Even though you're the king' little boy, I won't hold back!"

Undyne summoned DOZENS of energy spears around her, which surprised Asriel in return.

"Use your spear to create a barrier!" Undyne exclaimed while throwing a bunch of spears at Asriel.

Asriel holds the spear forward and created a magical shield to protect himself from the energy spears Undyne launched at him.

"Good one." Undyne snaps her fingers, summoning more spears, "How about this?"

As Undyne tests Asriel' might, Frisk observes the session from inside the house, smiling.

"Ow! That burns!" Asriel rubs his shoulder as one of the spears scratches him.

"Hah! That's just a scratch! Don't back down now!" Undyne shouted inspirational quotes while she launches more spears at Asriel.

As time passes, Asriel grew accustomed to how Undyne launches her spears, he even managed to reflected one of the spears to Undyne, only to be repelled easily.

"Nice move, kid!" Undyne smiled, seeing Asriel almost out of breath, "Wanna take a break? You took a hell of a beating there." she withdraws her energy spears.

Glad that Undyne is giving him time to rest, Asriel sighed in relief. He lies down on the bed of flowers.

Undyne moves in to enter the house, "Hey, open up, Frisk." and knocked at the door.

Frisk opened the door, "Exciting?"

"More than that." Undyne puts a big smile as she began to remove her armor, leaving her with a dark black tank top and gray pants. Undyne sighed after doing some stretches.

Frisk appeared from the kitchen with two cups of warm tea, handing one out to Undyne.

"Thanks, kid." Undyne said while smelling the aroma, "Golden flower tea, huh?" she then took a sip from the cup, "Man, no wonder Asgore likes it a lot."

Frisk exits the house and approached Asriel whose still lying on the bed of flowers, he sits up when Frisk approached him, "What's up, Frisk?"

"Here." Frisk gave the cup of tea to Asriel.

"Oh, thanks." Asriel drinks the tea little by little, "Ah, that was refreshing." Frisk quietly stares at Asriel while he's drinking the tea.

"Wow." Undyne observes the two from a far, "I gotta share this." she pulled out her phone and took a photo of them, possibly posting it on UnderNet, "I bet Alphys is gonna freak out and make some kind of story out of it."

Undyne lifts her head, "Huh, looks like they're enjoying themselves." seeing Frisk and Asriel chatting under the tree, "Best if I leave 'em alone for now." then turned her attention to the kitchen, "Let's see..." she looks around the kitchen, inspecting the spices and ingredients, checking the fridge, and examining the cooking equipment.

Meanwhile, Frisk and Asriel is having a nice chat under the tree.

"You did good." Frisk smiled.

"Gosh, I almost impaled by hundreds of spears just now." Asriel scratches the side of his head.

"That's Undyne for you."

"Now I know what it feels like to have a menacing armored knight throwing sharp objects at me."

Frisk chuckles at Asriel' new experience.

"So, you two done yet? Because the cooking lesson is about the begin!" Undyne approached them from behind.

"Sounds less... Dangerous." Asriel stands up, reaching his hand to Frisk, helping them stand up.

"Nothing is "less dangerous" from me, prince." Undyne bends over to Asriel' height, "It's either dangerous, or CATASTROPHIC." then get straight up with her arms reached upwards spread.

"Okay...?"

"Let's do it somewhere else." Frisk suggested.

"Why should we?" Undyne turned her attention to Frisk.

"Remember last time." Frisk pointed their head.

"Oh." Undyne suddenly remembers what happened when she decided to take Frisk on a cooking lesson so they can be "Besties", which resulted in Undyne' house burned to the ground.

"Ah, I get your point." Undyne scratches her cheek, "Let's just grab some cooking materials and bring them somewhere... Safe?"

"Let's go." Frisk entered the house, followed by Asriel and Undyne to retrieve the necessary cooking materials.

*Meanwhile...

Sans is sleeping soundly on his chair, while his brother stand watch with an annoyed look on his skull.

"Sans..." Papyrus sighed, "This is the worst assignment EVER."

After a few minutes, the conference has ended. Various monsters exit the building, followed by Asgore and Toriel which came out last.

"Papyrus? I thought you were standing guard with Undyne?" Toriel asked Papyrus whose playing around with his bone sword.

"Well..." Papyrus sheath his sword, "Undyne is away and gave me a "special" assignment, and my brother here decided to "help"."

Sans opened one of his eyes when Asgore pokes his forehead, "Did I miss something?"

"Ah, no, you didn't miss anything." Asgore replied, "You did a good job as a guard."

"Thanks." Sans let out a yawn, "Welp, I'll see ya later." Sans walked towards a pathway of stone.

"Wait, Sans, that leads to a..." Toriel is cut off when she takes a look on where Sans is going, "...a dead end." then looks around the corner, "Where did he go?"

"Golly, that's amazing, he can make himself disappear just like that." Asgore comments on Sans extraordinary trait.

"Oh, he's always like that." Papyrus remarks, "Moving somewhere else without even moving."

"Well, only one thing to do now." Toriel heads toward the front gate of the building, "Let us go home."

"Ugh, I think I need some spaghetti after this." Papyrus followed Toriel and Asgore s they leave the are.

*Back to Undyne' lesson...

By Frisk' suggestion, they decided to cook in an open area in Hotland, the area is apparently surrounded by green cactus.

"I didn't know you have a taste for hot environment." Undyne turns her head on Frisk.

"Golly, it's really hot around here." Asriel wipes off the sweat on his forehead.

"Which means cooking hot food is much MORE better in hot temperature!" Undyne is getting fired up.

"Wait." Undyne realized something, "We need a stove."

"Oh, right." Asriel also realized it.

"There's a stove." Frisk pointed a stove of the MTT-Brand.

"Who put it there?" Asriel asks as he approached the stove, "It's still new."

"That's convenient." Undyne smiled.

"Put down the equipment." Frisk puts down the cooking equipment that they carried from New Home, while Undyne fires up the stove by instering a bucket of lava inside of it.

Asriel watches in confusion when Undyne pour a whole bucket of lava to fuel the stove, "How?"

"Don't ask." Undyne simply replies, "The fire will last longer if it's fueled by a bucket of lava!"

"Done." Frisk finished unpacking the cooking ingredients which consists of vegetables, buns, and MTT-Brand seasoning.

"Alright, looks like we're making burgers." Undyne cracks her knuckles, "Get ready!"

"Should we slice the tomato?" Asrile picks up a tomato.

"Let's make the sauce first." Undyne grabs the tomato from Asriel' hand, and put it on a table.

Frisk giggles while Undyne is preparing to "make" the sauce.

"Here goes!" Undyne pounds the tomato and instantly turned it into a pool of red fluid, "Eh, we need more than this." she then grabbed another tomato and proceed to do the same.

Asriel turned his head to Frisk and raises one eyebrow with a confused look.

Frisk replied with a smile and raising their shoulders.

"C'mon, try it!" Undyne hands over a tomato to Asriel, "Hit it with all your might!"

Asriel put the tomato on the table, and pounds it with his hand, the tomato just bursted inside-out.

"That's not hard enough, try again!" Undyne hands over another tomato.

As Asriel pounds the tomatoes, Undyne is encouraging him to pound harder, telling him to envision the tomato as his "greatest enemy" and that he should "beat up" the tomato with "extreme passion".

While the prince and the knight are undergoing their cooking lesson, Frisk took a few pictures with their phone and decided to share it at UnderNet, and telling Asriel to "bring the power of Hyperdeath upon the tomatoes".

After both Undyne and Asriel depleted the tomatoes, they scraped the "sauce" into a bowl.

"Well." Undyne wipes off the sweat on her forehead, and gave Asriel a thumbs up, "Good job, you're better than Frisk at this."

"What do you mean?" Asriel tilted his head, "I thought Frisk is the only one who can cook properly."

"Well..." Undyne explains to Asriel, "They pet the tomatoes instead of pounding them."

Asriel turned his head to Frisk, who is sitting on a carpet behind them, they gave Asriel a smile.

"Right, they're like that." Asriel turned around to focus on his cooking lesson.

"Next step: slice the vegetables." Undyne looks around for the vegetables, but shortly find out that the vegetables has already been cut nicely by Frisk.

"Here." Frisk handed over the sliced vegetables, such as cucumbers, tomatoes, and lettuces.

"Thanks, I guess. But why did YOU cut the veggies?"

"I like vegetables."

"Alright, then." Undyne put aside the sliced vegetables.

"Now, we cook the meat." Undyne readies the frying pan alongside the MTT-Brand seasoning, "Naturally, homemade seasoning is the best."

"But we just buy store-brand, they're the cheapest." Asriel replied.

"Exactly!" Undyne exclaimed and heats up the pan after pouring some oil in it, "It'll take some time."

While waiting for the oil to heat up, Undyne mixes the seasoning in a bowl and envelop the slice of patties with the seasoning.

"Um, is mixing up seasoning like that really a good idea?" Asriel asked with a concerned tone.

"Hamburgers with one flavor is tad boring!" Undyne continues to work on the other patties.

"I mean, mixing the flavor "Hot Chili" and "Metallic Salt" won't end well. Even though it SHOULD end well." said Asriel while he examines the packaging for the food seasoning.

"No worries, I just put one spoonful of each, not too crazy" Undyne drops the patties into the frying pan once the oil heats up.

Because of the lava-powered stove, the temperature is extremely hot, making it faster to cook, but hotter the food will be.

"Check this out, kid." Undyne attempted to throw a patty upwards to flip it, but she ended throwing the meat into a pool of lava instead.

"Ah, we only lose one patty, there's still more."

"It's best if we don't do that again." Asriel points at the frying pan.

"Haha, good point." Undyne laughed while putting another patty on the pan.

Frisk observes the lesson quietly, it seems they forgot that Frisk is even there, too focused on cooking. But Asriel does look back just to check on Frisk every now and then. Frisk also reached a conclusion that Undyne' cooking has been improved since last time, and decided to tell Undyne about it.

"No explosions. Yet." Frisk remarks at Undyne.

"Yeah, it's quiet. TOO quiet." Undyne replied while flipping the patty with a spatula, "Still, all good so far."

"It's getting REALLY hot around here, though." Asriel is drenched in sweat.

"Hahaha! This is better than fighting Frisk back then!" Undyne is also drenched in sweat when it's Asriel' turn to cook the patty.

Frisk themselves is sweating, but not as much, they sit still on the carpet and stare at the two cooking or examining the cactuses.

After a few minutes, Asriel and Undyne are finally finished at cooking the meat, and are preparing to arrange the burgers.

"Golly, we can make a lot of burgers with all these." Asriel observes the array of materials they can use to make the hamburgers.

"Then let's make 'em!" Undyne arranged the burgers quickly with surprising accuracy, she arranged the ingredients into a perfect burger, "Your turn."

"Okay..." Asriel arranged the ingredients into the buns and made some burgers in a slow but steady pace, "Cool."

"Too slow, but you're getting pretty good at this." Undyne finished arranged the other burgers.

When all the burgers are done, Frisk came up with an idea, "Eat them with the others."

"You mean throw a dinner party?" Undyne looks pretty excited, "That sounds great! Let's move these burgs somewhere safe first, though."

"But there's many of them! How are we going to move them all?" Asriel asked while pointing at the stack of burgers.

"Ah, now that's a problem." Undyne scratches the side of her head.

"Don't worry." Frisk pulled out their phone, to Undyne and Asriel' confusion.

With a press of a button, two large boxes appeared from some kind of black hole.

"What the heck was that?!" Undyne exclaimed while pointing at the boxes.

"Alphys made it." Frisk replied calmly.

"Oh. No surprise, then."

They arranged the burgers inside the two dimensional boxes neatly, and actually ignoring that the stove is still turned on, heating up as it makes a whistling noise.

Asriel sniffs the air, "What's that smell?"

"What smell?" Undyne looked behind when she hears the noise, "Uh-oh."

The stove exploded in a violent manner, launching it into the air and into the pool of lava below, fragments of it flies at every direction, fortunately not close enough to harm any three of them.

"There's the explosion." Frisk snickers.

"Well, that's the last one." Undyne puts the last burger into the box, "Do it, Frisk."

Frisk pushed a button, and the boxes disappeared when a small black hole pulled them in, "Done."

"Alright, let's pack up the equipment and head home." Undyne began packing the cooking equipment, followed by Frisk and Asriel.

*Back at home...

When Toriel and Asgore arrived at their house, they look confused.

"It's quiet." Asgore said while standing in front of the entrance.

"Too quiet..." Toriel began looking around and calling Asriel' and Frisk' names, but to no avail.

"Maybe they went off somewhere."

"Kids these days..." Asriel holds her head.

"Maybe you should check the UnderNet."

"Oh, good idea!" Toriel pulled out her phone and opened the social media website, only to learn that Frisk, Asriel, and Undyne are undergoing a cooking "lesson", but is relieved when Frisk sent a message saying they're going home.

"So, what are they up to?"

"They're cooking hamburgers and are planning to invite their friends to eat them together."

"Golly, that sounds fun."

"Well, at least they could tell me first."

"Do not worry, let's just wait for their return." Asgore pats Toriel' shoulder.

*A few minutes later...

When Frisk, Asriel, and Undyne returned, Toriel greets them at the front door, while Asgore is apparently sleeping on the sofa in front of the TV.

Undyne decided to head back and tell Alphys about the plan so that she can help at preparing the party. Frisk and Asriel tells Toriel of the plan and she decided to help with the invitations, and inviting their friends via the UnderNet.


Well, that's all for now.

I have... homeworks that needs to be done.

Please leave a comment and feedbacks so that I can improve my story!