Papyrus was the first up the next day, or he would have been, had he ever gone to sleep. Not long after, Undyne and Toriel woke up to cook breakfast, followed by Chara, Frisk, Flowey, Asgore, Mettaton, and Alphys. Of coarse, Sans didn't wake up until an hour later, although a rather rude awakening.
SPLASH! "Ahg- urgbl- what? Who? Oh..." Sans woke to a bucket of water being dropped onto his head, yes including the bucket was dropped. It was none other than another prank Chara played. "HAHAHAHAHAHAHA... oh my... that was priceless." Chara said, wiping tears of joy from her face.
"It couldn't have been that funny." Sans replied nonchalantly. "Well, I guess I'll have to try harder next time." Chara said.
"I guess you will." Sans said, shrugging. Frisk peered through the doorway to see what the noise was, only to see Sans had been pranked again.
"Well, i guess it's good everybody's up, now we can play more Undertale! After we eat of coarse..." Frisk said. "Yeah, okay Frisk!" Sans and Chara said simultaneously waving, then leering angrily at each other.
Not too long after, Sans got dried up and everybody gathered at the table to eat. "So, Chara, what did you order in the mail this time?" Toriel asked as Chara sat down. 'Wait, is it in a package?" Chara asked, to which Toriel nodded. Chara quickly sprung up from her seat and retrieved the package from the doorstep, just to return back to her seat and open it.
Inside the package was a butterfly knife, the handle completely black, while the blade was red with a black design on it. "Another knife? How original." Sans commented sarcastically.
Chara then did the backhand twirl trick to open the knife, and flipped it close. "Well, at least i collect something other than socks." Chara added, to which Papyrus said "She does have a point, your sock collection is poor in comparison to her knife collection." to which everybody looked at Papyrus, confused. "I-I mean... Knives kill people! Why would you collect so many?" Papyrus quickly said.
"Now is not the time to be discussing bad habits and comparing collections, now is a time for eating." Asgore said, to which everybody started to quickly eat their breakfast and rush to the TV.
"Where did we leave off?" Sans asked. "Last time Toriel rescued us and now she's taking us into the ruins." Frisk said.
"Welcome to your new home, innocent one. Allow me to educate you in the operation of the ruins." Toriel said.
"PUZZLES!" Papyrus yelled, to which Undyne responded by tackling him, making Chara, Flowey, Sans, and Alphys chuckle.
Toriel walks over four of six switches then pulls a lever, causing a door to open.
"The Ruins are full of puzzles. Ancient fusions between diversions and doorkeys, one must solve them to move from room to room. Please adjust yourself to the sight of them." Toriel said.
Frisk walks over to a sign on the wall and it read: "Only the fearless may proceed. Brave ones, foolish ones, both not walk the middle road."
"I wonder what that means." Papyrus said.
"It's strange that you ask that, because it's the solution to the puzzle in this room." Toriel said.
"Don't worry Papyrus, I didn't know what it meant when I read it either." Frisk said, to which Chara added "That's a lie."
Everybody looked at Chara all of a sudden. "How would you know that?" Frisk asked. "Actually, now that I think about it, how did you even get here?" Toriel asked, to which Chara replied "The front door."
Everybody suddenly snapped back to the game, to which Chara let out a 'Phew' that only sans heard.
Frisk makes their way into the next room where Toriel is waiting. "To progress here, you have to trigger several switches. Don't worry, I have labeled the ones you need to flip." Toriel said.
Frisk walked over to the wall of the room to read a sign that said: "Stay on the path."
Frisk walked to the indicated lever and flipped it, to which Toriel seemed happy. They then walked to the next pair of switches, and flipped the one on the left, to which Toriel congratulated them, then moved on to the next room.
"Easiest puzzle ever." Chara said
"Not before the arrows were put there." Frisk added, then suddenly the doorbell rang.
Toriel got up and answered the door, the front door being out of eye-shot from the TV, the rest of the gang only heard voices.
"Oh, hello, who might you be?" Toriel asked.
"You can call me L" The boy said.
"I will, but what is you're name?" Toriel added.
"I don't remember, i have amnesia... all I know is it probably has an L in it... so I ask everybody to call me L so I don't forget that." L said.
"Oh... interesting, so what do you come here for?" Toriel asked. As Toriel asked that question, Chara got up and walked to the door.
"Right, is-" L was interrupted.
"Hi, L." Chara said, scaring Toriel.
"Oh, hey Chara, is it alright if i come in, Ms. Toriel?" L asked, to which Toriel Nodded and said "Just Toriel is fine."
The boy called L walked into the living room, he wore black shoes with green shoe laces, jet black jeans, a black shirt with a single bright green stripe going vertically over his left shoulder, and a bright green upside-down heart-shaped locket around his neck. He had bright green eyes and black hair which was jelled to be spiked off to the left. "Woah, who forgot to invite me to the party?" L asked seeing everybody in the living room.
"Sup' L? What brings you here?" Sans asked. "Well, where I've been living, in the apartment down the street, kicked me out. So I thought I'd ask if I could stay here." L said.
"How do you know if we have the room?" Sans asks.
"Well, I have my ways." L said mysteriously. "Luckily for you, we have a spare room, although you'll have to be without a normal bed for a while, although we do have a water bed for you to sleep on." Toriel said.
"A water bed? Why isn't it already being used?" L asked.
"Because, Frisk likes their bed, Chara doesn't like the feel of the water bed, and everybody else might puncture it if we sleep on it." Sans said.
"Oh, cool. By the way, what are you guys doing?" L asked.
"I'm playing Undertale, they're watching." Frisk said.
"Mind if I join?" L said.
"It's alright." Asgore said. L sat right between Chara and Sans, as Frisk resumed the game.
"As a human living in the Underground, monsters will attack you. You will need to be prepared for this situation, however, worry not! The process is simple. When you enter a fight, strike up a friendly conversation! Stall for time, I will be there to solve the conflict. Practice talking to this dummy." Toriel said.
"Strange, that looks oddly like Toriel and Frisk..." L said.
"That IS us... strangely enough, this game is a near exact replica of my adventure through Mt. Ebott." Frisk stated.
"Oh... cool." L said.
*You encounter the dummy
*Act Check
Dummy - ATK 0 DEF 0, A cotton heart with a button eye.
*You are the apple of my eye.
"Did you just flirt with a dummy?" Sans asked.
"Uhhhhhh" Frisk didn't know how to respond, to which Chara and L started laughing.
"..."
*Dummy looks like it's going to fall over.
*Act Talk
*You talk to the dummy...
*It doesn't seem much for conversation.
"No duh, dummy." L joked, to which everybody looked disappointed, but Sans said "Good one."
*Toriel seems happy with you.
*YOU WIN
*0 Gold and 0 EXP
"Aww..." Flowey said dissapointed. "Don't worry Flowey, exp will be got." Chara said, to which Sans flinched, accidentally activating his eye for a split second.
"What was with that?" L asked, to which Sans quickly fixed his mistake. "What was with what?" Sans played dumb.
"That... that eye thing. What was it?" L asked again. Frisk quickly stopped what she was doing in the game and turned around, looking at Chara, L, and Sans.
"I don't know what you're talking about." Sans said, trying to get the attention off of him. By now everybody was staring at Sans.
"Oh, must've been seeing things, my bad." L said, still suspicious.
"I'm done playing for now..." Frisk said, turning off the TV, but not the game. Only Sans, Chara, and Flowey knew why.
"Well... now that this is done, let me show you to you're room, L" Papyrus said.
L laughed. "The way you said that, you sounded like a butler or a bag boy in a hotel of sorts." L said.
A/N: Well then... time to answer any questions. In UnderPlay, Frisk and Chara are female. L is my OC. Nobody knows how Chara is there. Frisk doesn't remember the Genocide run due to her memories being repressed, although her memories can be triggered. Frisk does NOT know Chara followed her through the underground in spirit. Chara, Frisk, and L are all 14. Chara, and Frisk know L from school and Sans ran into L at a coffee place once.