Archive of Our Own ^beta

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Hello everyone!!!!

WELCOME TO THE SFW BABYSTERY ONESHOT COLLECTION!!!!

This chapter is just to give some context and info!! You don't have to read it if you don't want to, but there are some important boundaries listed here so we'd appreciate it!

First:

The authors of these fics are a DID system with many mental issues/setbacks. Our posting schedule is EXTREMELY inconsistent and we may not see your comments right away, so apologies in advance! In addition, our works may sometimes be confusing or hard to follow, as communication between our alters can be difficult. Corrections and criticism are appreciated, but please no hate!

Second:

We will always try our best to include trigger warnings and content warnings, but if we miss something please let us know! You're more than welcome to vent/rant in the comments of our more angsty fics :)

Third:

We mostly write angst and fluff, but feel free to request fics! These are our boundaries when it comes to requests:

We will not write extreme violence, smut, ANY references to rape or sexual assault, detailed abuse, detailed self-harm, anything related to self-unaliving, anything involving slurs or extreme discrimination of any kind, or detailed death scenes.

Some of our alters (but not all) are willing to write mild violence, references to death, references to abuse, references to self-harm, and mild homophobia/discrimination. If you request something with these topics, we will write it but it will take us longer than usual.

Aside from that, anything is pretty much on the table!!

Fourth:

In the bottom notes of each chapter, there will be a brief summary of the alter that wrote it! This is partially for your info and also because we're forgetful T~T

I think that's everything!!

If you have any questions at all, just let us know!! Thanks for reading this!!

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A loud beeping woke Mystery.

Exasperated, he swung his hand randomly at his alarm clock until he made contact and turned the alarm off. He stared through his bangs at the clock, blinking away his tiredness. 5:30 am. Much earlier than he would have liked, but he'd been sick for a few days and needed to catch up on practice for upcoming shows.

Mystery sighed and sat up, being careful not to disturb his sleeping boyfriend in the process. Baby grumbled a half-conscious complaint as Mystery let go of his hand, but didn't wake up - or so he thought.

As Mystery swung his legs over the side of the bed and moved to get up, a hand grasped his wrist, gently but firmly holding him there. When he turned back around, Baby's teal eyes, blurry with sleep, were fixed on him.

"Myyyyyysttt," he mumbled quietly, "where are you goingggg?"

"I have to go make up the practice that I missed, babe," Mystery responded in a whisper. "You know that."

"But it's sooooo earlyyy," Baby whined. He rolled onto his back without releasing Mystery's wrist.

I can't decide if this is adorable or mildly frustrating, Mystery thought. He chuckled to himself, then leaned over to kiss Baby's forehead gently.

"Then go back to sleeeeeep," he answered, matching Baby's tone. Baby rolled over to face him once more, pouting slightly.

"But I can't sleep when you're not here. I don't have anyone to cuddle with." Baby's pouty face, combined with his adorable mumble, made Mystery's heart melt. Even more so when Baby grabbed his arm in both hands and whined, "c'monnnn, just one more hour of cuddles? Pleaseeeeee?"

"Goddamnit, why did I have to fall in love with someone so adorable?" He whispered under his breath.

Mystery sighed and climbed back into bed. "I guess one hour can't hurt."

"Yayyyy!!!" Baby had no hesitation in cuddling up against him, holding onto him like a koala. Mystery wrapped his arms around his boyfriend and kissed his forehead gently. Baby was asleep again in a matter of minutes.

Half of mystery knew that he needed to make up practice. But his beautiful boyfriend was far more important to him than an hour of dance practice.

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Mystery sat curled up in bed, reading. The Saja Boys didn't have rehearsal that afternoon, so he was taking advantage of the peace and quiet. Baby had gone for a walk, also enjoying having a break from expectations.

Mystery looked up when he heard the door click open, smiling when Baby stepped inside.

"Hey babe! Did you have a nice walk?"

Facing away fron him, Baby shut the door and hurriedly wiped his eyes before responding. "What? Oh, yeah, i-it was fine." Mystery's smile faded to concern.

"Baby, are you... Crying?" He asked gently, putting his book aside. When Baby still didn't look at him or respond, he stood and made his way towards his boyfriend. Sure enough, there were tears streaming down his cheeks. Mystery's heart sank.

"What happened, sweetheart?" He asked gently. He wanted nothing more than to pull Baby into a hug and never let go, but waited for him to initiate contact.

"N-nothing, it's stupid," Baby said, wiping his tears away. "I j-just got trig-triggered."

"That's not stupid," Mystery assured him. Baby had been through a lot of shit before he became a demon. He had every right to be triggered by it now. "What triggered you?"

Baby didn't respond, instead wrapping his arms around Mystery and burying his head in the crook of his neck. He shook his head, signifying that he didn't want to answer.

Mystery wrapped his arms around his boyfriend, letting him cry in his arms. "That's okay. You don't have to answer if you don't want to," he whispered. "Is there anything I can do to help?"

Baby paused to think for a minute, then shrugged.

"You sure?"

Another pause.

".....dunno."

His voice was softer and quieter than it had been before, and sounded almost... Younger? That combined with the way he was clinging to Mystery for dear life, made Mystery realize something.

"Baby," Mystery said slowly, "how old are you right now?"

"Mmm," Baby mumbled, thinking. "Eight? Maybe nine?"

'So he DID regress.' Mystery made a mental note of that, but his few seconds of silence made Baby tense slightly. He looked up at Mystery.

"Did I do something wrong?" He asked quietly.

"No," Mystery assured him.

"You promise?"

"I promise."

Being Baby's caregiver pretty typically meant LOTS of reassurance - which Mystery didn't mind providing, of course. Thanks to the horrible adults in his childhood, Baby was mistreated a lot when he was human. So when he regressed, he started expecting Mystery to do the same.

"Are you sure there's nothing that would make you feel better?" He asked, trying to help Baby feel more safe.

"Welllll.... There is one thing. It's kinda dumb though...." Mystery tiled his head, encouraging Baby to go on. "....ice cream?"

"Ice cream would make you feel better?" Mystery asked, amused.

"Mm-hm. And a movie," Baby declared. Mystery chuckled.

"Ice cream and a movie it is. Do you want to pick out a movie while I go grab some ice cream?" Baby nodded enthusiastically. "Alright then."

Mystery turned on the tv and opened a streaming service, then gave Baby the remote so he could pick something out. He left the room and retrieved ice cream sandwiches from the freezer, remembering that Baby liked them.

When he returned to their shared bedroom, Encanto - a favorite of Baby's - was queued up on the screen. Baby was curled on the bed, cuddling a stuffed purple bunny toy. He gladly accepted the ice cream sandwich, then made grabby motions at Mystery.

"Cuddles," he demanded. Mystery sat down next to him and wrapped one arm around him. Baby snuggled up against him and started the movie, his younger self finally relaxed and unworried about being abandoned again.

'I'm not going to abandon you like they did,' Mystery promised him silently. 'I'm going to take care of you. You're safe with me.'

Chapter Text

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Baby's POV

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Baby was exhausted.

The Saja Boys had a HUGE show coming up, and Jinu was freaking out. They'd been practicing practically nonstop for weeks, and rather desperately needed a break, but Jinu refused to back down.

"This is our biggest show yet," he insisted. "We need to make sure it's good."

Abby sat on the ground, drinking water. "Jinu, this is ridiculous," he said. "The world isn't going to end because we take a five minute break-"

"SHUT YOUR DAMN MOUTH," Jinu yelled back, causing the whole group to flinch as his demon patterns flared. "Do you think I made this group so that you idiots could lounge around and refuse to work? NO. Now get your asses back up and run it from the top."

His tone convinced the boys pretty quickly. They got up from where they'd been sitting without protest and began to move back into position - all except for Baby.

After standing up, he felt himself get extremely lightheaded and he instinctively put one hand against the wall to steady himself. Romance, who noticed this, turned back around. "Baby? You okay?" Baby could only manage a whimper before his legs gave out and everything went black.

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Mystery's POV

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Baby whimpered faintly before his body crumpled beneath him. Thankfully, Romance was close enough to catch him and lower his limp body safely to the ground.

"BABY?!"

"OH MY GOD, WHAT WAS THAT?"

"IS HE OKAY??"

The Saja Boys (discounting Jinu) started freaking out. Mystery froze, paralyzed by panic as his boyfriend went limp. After a few seconds, he finally managed to get it together and ran to Baby's side.

Romance's eyes were wide as Mystery knelt beside Baby. "He's burning up," Romance gasped out.

"This is Jinu's fault," Mystery muttered under his breath. His boyfriend had just fainted, AND IT WAS JINU'S FAULT. In an instant, he stood and whirled around to face Jinu.

"WHAT THE FUCK, JINU?!" he yelled. "DO YOU SEE WHAT YOU JUST DID?"

Jinu just rolled his eyes. "Oh please. Quit being dramatic. This only happened because he hasn't been up to shape. It's his own fault."

Mystery could only stare at him. Behind him, he vaguely processed that Abby had stood up too, and Romance had called 911.

"Get out," Abby said to Jinu. Jinu tried to protest, but never got a chance. "GET THE FUCK OUT."

Jinu looked like he was considering arguing, but when Abby stepped forward he clearly thought better of it and left without protest.

Mystery and Abby silently returned to their maknae's side and waited for the EMS to come.