After Completing Genocide, I Unlocked The Game System?!

"Are you two alright? Are you injured anywhere? Is the monster still around?"

Toriel's hands were glowing with magic. Even as she healed us, the questions kept coming like bullets due to her concern.

"Did the monster hurt you two? Kira, please, sit up slowly—no, not like that—oh, child, your injuries…"

Like a worried mother panicking mid-crisis but trying to look composed, she fluttered between us like a nurse trying to triage two patients at once. Her panic was very noticeable. It came from care and kindness, so I just had a wry smile.

"Toriel," I finally said, forcing myself upright despite the pain in my joints. "We're fine. It's nothing life threatening. You don't have too worry so much."

Frisk nodded at my side. "Yes! You don't have to worry."

But Toriel didn't buy it.

"I shouldn't have left you two alone…" she whispered, more to herself than us. "This was a mistake. I only stepped away for a moment and you two had already encountered such a dangerous situation!"

Frisk reached out and took her hand to ease her worries.

"It's not your fault," she said softly.

Despite nearly killing us with that badly timed phone call, we didn't take it to heart. She probably only wanted to remind us not to wander off or touch any strange switches.

Still, guilt clung to Toriel's shoulders. Her hands kept moving, weaving more healing spells into us long after the bruises had faded and the cuts had sealed.

Toriel looked down at her hands, the light dimming slightly as her magic settled. We were fully healed now. But she still wore that look parents get when their kids get hurt under their watch.

"I… I'm so sorry, children," she finally said. "This place is supposed to be safe. I should have cleared the path and double checked—no, triple checked for anything dangerous!"

With those words, she pulled us both into a firm hug, wrapping her arms around me and Frisk like she was trying to protect us from the world.

"I shouldn't have left you two alone. I should've known better…"

After a moment of silence, she stepped back slightly, still holding onto our shoulders, and looked between us with a mixture of guilt and relief.

"Come. Let's go home. It is much safer there."

We both nodded.

...

As we were walking, Frisk couldn't help but ask, "Umm... Toriel, apart from you... are there other good monsters?"

Toriel gave a light chuckle as she nodded. "Why of course. There are many friendly monsters in the Underground. Most monsters are very reasonable and can be talked to. But there are also some who view humans unkindly and can be aggressive..."

She paused for a moment.

"However, the monsters in the Ruins are a little different. Many have… lost themselves," she then explained quietly, "They've been trapped here and there's not a lot of food for everyone. Hunger makes them violent. It strips away their reason and makes them unstable."

I listened, pondering quietly.

Toriel's expression shifted for a moment. "I've tried to care for them by feeding them. But... even then, it's still not enough..."

She looked down, her expression complex.

"But you're both safe. That's all that matters."

Toriel shook her head and gave a faint smile, deciding to change the subject.

"Oh—!" she exclaimed, then gave a sheepish smile. "I almost forgot. I was about to bake something special. A small surprise for you two."

Frisk tilted her head. "A surprise?"

Toriel nodded, her eyes softening. "Mmm-hmm. Something sweet to celebrate the two of you arriving... and bravery—though I'd have preferred there being no danger at all."

She gently ushered us forward as we continued walking down the purple halls of the Ruins.

"I had called prior to ask whether or not you preferred butterscotch or cinnamon, but since the two of you hadn't picked up the phone, I had made a butterscotch-cinnamon pie instead," she said, her voice regaining a bit of its usual warmth.

Frisk's eyes lit up immediately. "Butterscotch-cinnamon?! That sounds amazing!"

Toriel gave a gentle chuckle. "I hoped you'd like it."

We kept walking in comfortable silence after that.

Eventually, we stepped into a wide clearing. At the center stood a single, wilted tree—its bark dry and leafless, but surrounded by a carpet of vibrant red leaves.

And just beyond it, stood a small yet peaceful looking home.

Toriel stopped beside us and smiled.

"Welcome home, children."

Toriel's voice was soft, but full of warmth. "I know it's not much… but I hope this place can be a safe haven for you both."

Frisk looked up at her with gratitude. I stayed quiet, but I was also grateful. Truth be told, I have a soft spot for people like that. The selfless and honest ones. The ones who try to protect others even when the world gives them nothing for it. Maybe because I know how rare they are.

Toriel continued, stepping toward the door and opening it with a creak.

"Please, make yourselves at home. I just need to put the pie in the oven. It won't take long."

She turned and gave us a smile. "Feel free to look around."

Then she disappeared into the house, humming softly as she moved deeper inside.

The moment we stepped inside, the scent of aged wood, warmth, and something sweet in the air wrapped around us like a blanket. The interior was cozy and modest.

Frisk wandered ahead, curiously glancing around at the furnishings, while I trailed a little slower behind.

To the left was a modest living room. A nice fireplace radiated warmth, giving a comfortable vibe. Shelves lined the wall near a couch. One shelf in particular caught my attention. It was stacked with books. Some seemed very old and ancient.

I moved closer, brushing a finger over the titles. "Snail Facts and You."

…Pass.

"72 Uses for Snail Shells."

Also pass.

Then I found something that actually caught my interest: "The History of Monsters, Volume I: The Fall of Surface Peace."

I pulled it from the shelf, sat on the couch, flipped it open and began reading:

>Long ago, humans and monsters coexisted in an uneasy peace. But fear, as it often does, won out. One day, war had broken out between the two races.

>After a long battle, the humans were victorious. With the existence of seven powerful human magicians, they casted a spell to seal and trap the monsters underground.

>.....

>.....

>We retreated… farther and farther… until we reached the end of the cavern. The barrier locked us from the surface. And thus began the age of isolation.

I paused at that.

Magicians, huh?

This world wasn't as simple as I thought... Even when I realised I was in the world of Undertale.

In the past, it seems humans used to know magic.

I leaned back, eyeing the flickering fireplace across from me.

That means… maybe it's not just monsters who can use it. If humans once wielded it, then maybe I could too...

I looked down at my hand. My soul still felt dormant and quiet. But with that fight I had with the one-eyed monster, I still felt I had yet to tap into the full potential of my soul.

Perhaps different souls had different abilities and special affinities for magic?

I could only guess.

But such thoughts filled me with excitement.

"Whatcha reading?" Frisk's voice popped up beside me, peeking over the edge of the couch.

I tilted the book toward her. "History about monsters, want to read it?"

Frisk nodded lightly, sitting beside me and leaning her head as I flipped back to the first page.

After some time, Frisk also got the gist of their history.

"It's kind of sad, isn't it?" she murmured.

"They just got pushed down here and forgotten…"

I didn't answer. But I didn't disagree either.

A few minutes later, Toriel's voice called from the kitchen.

"The pie will need some time to bake and also cool off a little before it's ready. In the meantime—shall I show you your rooms?"

Frisk and I responded with a nod.

We both stood and followed her down the hallway.

At the end of the hall, she gestured gracefully to the first door.

"This here is the guest room," she said, pushing it open. "Freshly cleaned, and I'll bring in some new sheets and pillows shortly."

It looked comfortable enough. There was a small bed, two lamps, a wardrobe, and other things.

After looking around briefly, Toriel gestured to the next room. "And this is my room."

Then we came to the last door. It was covered in dust and bore a crude wooden sign that read: "Under Renovation."

I stared at it for a moment. "So… there's only one guest room?"

Frisk blinked, her face heating up like a kettle on the stove.

"W-Well, I-I mean… I don't mind sharing a bed," she mumbled, eyes darting away. "I-If you don't mind too…"

The tips of her ears were practically glowing red.

Before I could even form a reply, Toriel clapped her hands with a motherly firmness.

"Oh, fret not, fret not!" Toriel spoke, "I can reopen this room easily. I just need to sweep and dust it a little, and I have extra sheets and blankets stored away. It will be no trouble at all."

Frisk nearly folded in half from embarrassment. I gave a small chuckle and glanced at Frisk's adorable, flushed expression.

Toriel turned and headed off to gather everything for the room, leaving us alone in the hallway.

The second her footsteps faded, I slowly turned toward Frisk.

"So… you don't mind sharing a bed, huh?"

Her face exploded in red.

"W-Wh—! That's not—! I didn't—!" she stammered, clutching at the hem of her shirt like it was her last shred of dignity.

"Relax, I'm just messing with you." I laughed a little.

Indeed. I can't laugh too much.

"After all, I would have accepted your offer in a heart beat," I spoke casually before walking back to the living room, not forgetting to ruffle Frisk's hair gently. She was completely frozen like a statue at my words.

...