AN: Hi guys! I'm trying my best here.

Lucy inspected the keys, she had some time off and wanted to try a few out. She picked one out and used it. "Open! Gate of the Recluse, Napstablook!" She called out as a ghost appeared in front of her, looking shy.

"Oh… I'm Sorry, did I come by accident?" They said quietly.

"No I summoned you on purpose." She said confused.

"Oh… I'm Sorry… I'm probably wasting your time aren't I? Oh no… I'm taking up so much of your time… I'll go now…" They mumbled, going back to the spirit world on their own.

"Huh… Guess it is a recluse." She muttered, understanding the name… "Maybe someone else would be better… Napstablook was really shy…" She noted, looking through the other keys. The key with a wheel for the key blade was red, a sign from Frisk that it couldn't be summoned. She found one similar to Toriels key, with a trident head as the key blade. "This one maybe… Open! Gate of the Monarch! Asgore!" She called out, summoning a goat monster similar to Toriel, but larger and male.

"Howdy! You must be Lucy!" He said with a deep but kind voice.

"Yeah, that's me…" She muttered, taking in his height and bulk.

"Ah, am I really that threatening?" He asked curiously.

"Kinda…"

"I'm sorry for that, he said, as his robes vanished, making him seem much softer. "Is this better?"

"Yeah that's better, thanks sir." She said.

"Call me Asgore, please, would you like a cup of tea?" He asked before noticing the floor creaking under him. "Actually… It might be safer to do that another time." He decided, giving Lucy a kind smile before heading back to the spirit world so the floor wouldn't collapse.

"He was nice." She decided with a grin.

Few days later.

Lucy was relaxing at the guild hall, while Natsu looked at the jobs lists. "Hey that's weird!" He said as Lucy walked over confused.

"What's weird Natsu?" She asked as he showed her a job. "Clear out a group of demons inside of an ancient underground kingdom found by the Fiore digging company… Reward… 9 hundred thousand Jewel?" She muttered in shock. "And permission to take anything you want from the kingdom as an extra reward? Wow. We should do it!" She decided.

"Sure! I just thought it was weird 'cause there isn't a Fiore digging company!" He pointed out.

"It's a new one, I hear about it a lot." She explained, as Grey, Erza and Wendy joined them on the Train.

Few more hours later

Natsu was dragged off of the train and the group had gone down the tunnel…

"So when did this place get found?" Grey asked, as they went down the steps.

"I'm not sure to be honest." Lucy said, as the group found an old house, with dead plants all around and dusted walls.

"Whoa! Check this out!" Natsu shouted, as he looked at something from the bottom of the stairs that were in the house.

"What did you find Natsu?" Erza asked as the group went down them.

"This!" He said, as they found a busted down door with bubbling claw marks.

"Good job flame brain, you found where these demons are heading!" Grey said with a smirk.

"Heck yeah I did!" He grinned, as the group kept going, finding an old rotten tavern in a snow filled section, a dried up water fall in another and then they reached an old lab of some sorts… They entered to find demonic figures all around it, talking about something in another language, they hid and waited for them to leave, once they had, they found a switch which turned on the lights…

"Huh…" Lucy looked at a terminal or something with a code that needed inputting. "Well… If we need a genius… OPEN! Gate of the Scientist! Alphys!" She called out, as a yellow lizard appeared.

"H-Hello… I-I'm Alphys…" She mumbled. "D-Did you need anyt-thing?" She asked.

"Could you get this thing working?" She asked.

Alphys looked at the machine in shock, before nodding and getting to work. After a few minutes she cracked the code and vanished instantly in nervousness.

"That wasn't me." Lucy quickly said as they looked at the machine, flicking through the different, until they found a group of demons trapped in some kind of circular room, with screens all over it.

"Let's go there! We should be able to get rid of the rest after!" Natsu shouted, rushing off out of the lab.

"Natsu wait!" Lucy shouted, as the group ran after him.

Few minutes later

The group arrived at a room outside the demon one, getting a good look… They seemed more like humans than the demons from Galuna Island… But they were so feral and horrid looking… Suddenly a screen turned on inside the room, revealing a shadowy figure. "Well then! It looks like we have some guests my minions!" The figure said, as the place shook, opening a door under their feet which dropped them onto a slope, leading to the demons room. "LET'S RIP THEM TO SHREDS!" The figure screamed insanely.

"Oh this isn't good…" Natsu asked, as his magic refused to work, as with everyone else, other than Erza and Lucy, Erza only able to change armours. "Hey Luce? Any spirits that'd work here?" He asked worried, with Grey hiding Wendy behind him with Carla and Happy.

"Maybe one…" She muttered, grabbing the key with the wheel blade and holding it up.

"A spirit user? No matter…"

"Open! Gate of the Celebrity! Mettaton!" She called out, as a metal box on a wheel appeared.

"Oh Darlings! I'm so sorry for my look! Would you mind flipping my switch?" The box asked, turning around to show a large switch, Lucy flipped it, creating a male metal man, who smirked. "Thanks Darling! Let's dance you freaks!" He announced, as metal boxes shot through the demons easily, ripping them to shreds.

"NONONO!" The figure shouted. "First you kill my human servants, and now my DEMONS?! IMPOSSIBLE!" They roared, as the screens shattered.

"And good riddance." Mettaton announced, as the group felt their magic return. "Now I'm afraid I must be off! I was working on something at the time!" He told them, vanishing…

"Well… We got rid of the demons…" Wendy pointed out, they had got rid of the rest on the way there.

"But we can't let this guy do whatever he's planning." Erza said, walking on to find the figure…

After a while they found a man in a cloak, holding a strange box. "I found it! Zeref's artefact will give me the strength I need! The demon and judge betrayed me… But this won't!" He shouted happily, as it glowed, merging with him.

"Ice make; PRISON!" Grey shouted, trapping him in ice.

"You fool! You made me stronger!" He shouted, as the ice shattered before it could trap him fully. In a flash of light he floated into the air, with the world seeming to warp.

"I hope this works…" Lucy whispered, remembering Zeref made demons. "Open! Gate of the Soulless Angel! Asriel!" She shouted as a small goat child appeared.

"Howdy! I'm Asriel!" He grinned childishly. "Golly! You really need help?" He asked, noticing the man grow demonic features. "I guess I could help… I'm not the best fighter though." He explained, before changing shape to an adult version of himself, also floating. "Now… Face the god of HyperDeath!" He shouted, as the two beasts fought each other, Asriel clearly overwhelmed by the mans power.

DING! A gate opened on it's own…

"Asriel what are you doing?" Frisk asked grabbing his leg.

"I'm… Fighting!" He growled in pain as he fought back.

DING! Another gate?

"Asriel! You're not at full strength! You're never at Full strength!" Chara added, as the two children flashed red and merged with the goat, making him strong enough to send the man/demon flying into space…

The three unfused dizzily before vanishing.

"That… THAT WAS AWESOME!" Natsu shouted in awe.