You just left the elevator and walked towards the river that Asgore told you, once you got there you found a hooded figure on top of a boat, so you approached it, it started to talk to you

RiverPerson: Hey there, I'm the RiverMan, or I'm the river woman? It doesn't matter really, I ride this boat through the river, it doesn't matter the weather if it's rainy or sunny, I'm always here, anyway, care for a ride?

Y/n: Sure, I need to go to snowdin, please

You said as you hopped on the boat

RP: then, we're off

It said and started to navigate through the river

RP: Tra la la. The water's quite dry today... That's a bad sign

You look at the person trying to understand what it meant by that as the boat float by the river. Once you got to the boat, the person told you to come back sometime and you waved it farewell.

Y/n: Alright, what does Undyne want?

Chara: Must be serious for her to ask you to be here in person

Y/n: Please tell me I didn't do anything wrong...

Chara: Did you do something wrong?

Y/n: I dont know! Did I?

You both go towards Papyrus house and soon as you spot them you throw a snolball at Undyne, but you didn't hit her at all

Chara: You really need to work up your aim

Y/n: Missed me?

Undyne: I guess you "missed" me, punk!

You walk to her casually while waving to papyrus

Y/n: So... What do you need me for?

She shows you a letter that looks really sealed up

Y/n: What? Are you gonna confess your feelings for me or something?

Chara slaps your head

Undyne: What? No! I want you to deliver this letter for me

Y/n: Ok? Why can't you deliver yourself again?

Undyne: I doesn't matter, just give this to Alphys, please, and don't you ever think on trying to open this letter!

Y/n: I'm not a Jerk, it's no for me, why would I try to read? Besides... Looks like you need a chainsaw to open this, which I guarantee you that I don't have

Undyne: Good, now hurry up! I don't have all day!

Y/n: Technically, I'm the messager, and I do have all day so...

Undyne: Just go deliver this letter already!

Chara: What did you said about being a jerk?

Y/n: Jeez alright, alright, I'm going, bye now

You walk towards the River Person again but slowly this time

Chara: What do you think it is?

Y/n: Clearly a letter, but what is written on, I have literally no clue

Chara: Do you want to open it?

Y/n: And I'm the jerk, right?

Chara: Shut up, I just wanted to test you, to see if you weren't going to try and spy on the letter

Y/n: Yep, totally believe in you

You both get to the boat again

RP: Tralala Where we're going today?

Y/n: Take us to the hotlands please!

RP : Then we're off

You hop on the boat and it starts to go towards hotlands

RP: Eat a mushroom everyday.

Y/n: What? Why?

RP: "Why?" So I know that you're listening to me

Chara: Really...?

RP: Yes, really

You both look astonished at the River Person but they're totally unamused by your gazing. You finally get back to hotlands and you just speed walked out of the boat and stood still in front of the Lab processing what you've heard

Chara: That thing... Can hear me?

Y/n: Yes...

Chara: HOW?!

Y/n: Maybe... You're not as lost as you thought you were, or maybe, she... He... It? Knows about something that we don't

Chara: NOOOOOOO, YA' THINK?!?!?

Y/n: Well, I don't know, maybe they're a "Knowing all" entity

Chara: Let's... Focus on that later, we have a letter to deliver

Y/n: you're right, let's-a go!

You knock on the door and don't hear anything, so you slip the letter under the door

Alphys: What another letter? I'll just put it with the others... But... Maybe it's something important? Just this time I'll open it!

You then start to hear a chainsaw starting up and working

You and Chara change looks and when you where about to leave you hear the door opening

Alphys: T..thanks, b...but I... Wait... You wrote the letter?

Y/n: I-

Alphys: Oh my God, oh my god, oh my god!

She starts sweating nervously going left and right

Chara: I don't think she heard you

Y/n: Alphys!

Alphys: R... Right! I have to get dressed

Y/n: But I j-

She closes the door right in your face and you hear her running inside the Lab

Chara: I don't think I can get mad at something I don't understand

Y/n: yeah

The door opens to reveal Alphys

Alphys: We...well, where should we go?

Y/n: Alphys, I-

Alphys: I have an Idea! Follow me!

She grabs your waist and drags you towards the junkyard in the waterfall

Alphys: So... W...what do we do?

Chara: Are you alright? She dragged you for quite a long time

Y/n: Ouch... I'm good

Alphys: I know! Before we start I have to give you something to increase our... Dating points?

She grabs somethings

Alphys: Here, I have and armor polish for you to...

She looks at you and tosses away

Alphys: Nevermind, how about this magic repairing kit for you to repair you spe...

She throws it away

Chara: I know what's going on here

Alphys: Then... How about this moisturizing cream for your scales and...

Y/n: clearly those are not for me, that's part of what I wanted to tell you

Alphys: W...well since you k...know I like Undyne...

Y/n: Why don't you tell her this? You like her, it's possible that she likes you too

You hear some footsteps and Alphys freaks out

Alphys: Oh no... Undyne is coming... I can't let her see me with you like this... I have to hide!

She jumps into a Trashcan

Undyne: Hey punk! I realized that I didn't sign the letter, and Alphys could get things wrong, so give me the letter

Y/n: I've already delivered to her

Undyne: So you don't have it? Crap... Have you seen Alphys then? I have to talk to her quickly

Y/n: Actually I did, she's j-

Undyne: So she IS around here! I'll keep on looking

She walks away and Alphys gets out of the trash

Alphys: is she gone?

Y/n: yeah

You say rubbing your forehead

Alphys: But I can't just tell her like this, what should I do??

Y/n: I can't believe I'm saying this but... Why don't we roleplay?

Chara: Are you serious?

Y/n: It's the only way I can think of helping right now

Alphys: Alright, then... Who would you be?

Y/n: Erm... Undyne...

Alphys: Right... Obviously

Alphys: UNDYNE HOLD ME UNDYNE!

Undyne appears right next to her and I look at her

Y/n: Sup Undyne, how're things?

Alphys freezes and Undyne looks at you

Undyne: What is happening here?

Y/n: Roleplay, I'm supposed to be you, and, I guess she does likes you too, but she's too insecure to say so, let's be good friends and help her out, okay?

Undyne stares at you and kneels down to Alphys Level and hugs her

Undyne: Alphys... If you wanted to hang out more, you could've just told me, and, I know how we can help you

Alphys & Y/n: You do?

Undyne grabs Alphys and throws her directly at the trashcan

Undyne: You can't continue like this, let your hopes and your dreams burn with passion while you go through a intense session of training for you to be just like me!

Alphys: I'm Ready Undyne

Undyne: I'm not training you...

Papyrus jumps from a pile of trash with a workout outfit

Undyne: He is

Papyrus: LET'S SHAKE THOSE BONES!

Y/n: Hey Paps

Paps: HOWDY HUMAN! NOW I'M GONNA TRAIN DOCTOR ALPHYS! WELL, LET'S NOT LOSE ANYMORE TIME!

He and Alphys start running away and Undyne looks at her smilling

Y/n: So, you guys are a thing now?

Undyne: I guess.. how did you...?

Y/n: Many things must be left still to be unspoken, but still, I already knew she liked you since, I don't know, 3 runs ago? Anyways

Papyrus: ALPHYS AND I FINISHED OUR TRAINING EARLY. VERY EARLY... SO I SENT HER HOME. VERY HOME... UH... NOW. I FEEL STRONGLY AND FOR NO APPARENT REASON. YOU SHOULD ALSO GO... THERE, Y/N TO HER LAB... HOUSE. I HAVE ONLY GOOD FEELINGS ABOUT THIS. GOODBYE!

He runs away and goes straight to Snowdin

Undyne: That's not normal...

Y/n: Yeah...

Undyne: Don't keep her waiting, she does need a friend too. Don't worry, Papyrus and I are gonna be at the castle to bide you farewell, okay?

Y/n: Okay?

She waves at you and starts walking towards Papyrus house playing with her a sword she found at the junk sword

Undyne: Bye, you punk!

She walks a little faster. You stay a little dumbfounded and walk fast towards Alphys lab. Since you knew it was going to take a long time, you ran to her lab as fast as you could until you finally arrived at her lab, you entered it and in the middle of the lab there is a note on the ground, you pick it up and had a hard time to read it

"Hey. Thanks for your help some time ago, you guys... Your support really means a lot to me. But... As difficult as it is to say this... You guys alone can't magically make my own problems go away. I want to be a better person. I don't want to be afraid anymore. And for that to happen, I have to be able to face my own mistakes. I'm going to start doing that now. I want to be clear. This isn't anyone else's problem but mine. But if you don't ever hear from me again... If you want to know "the truth" enter the door to the north of this note. You all at least deserve to know what I did."

Y/n: Okay Alphys, let's see what you're hiding

You go to the door and entered it. Noticing it was an elevator, you pressed the button, and the elevator started working, but suddenly it started to fall faster and faster and a voice said "WARNING, WARNING! ELEVATOR LOSING POWER"

The elevator fell and crashed into the ground but you were actually okay, you didn't have any broken bones but some scratches in your legs, but nothing much, Chara however was freaking out

Chara: WE'RE STUCK DOWN HERE FOREVER Y/N!!!!

Y/n: Calm down, we can sort this out, relax!

You walked out of the elevator and noticed you were in an abandoned lab, but something felt odd about this place.

================================

A/n: Not good, but not bad either, it's pretty okay but I can do better, see you guys later!