MLP/Undertale crossover.
Not a PWNY-verse story.

Long ago, the Monsters and Humans fought a great war. The Monsters lost, and were sealed in the Underground. It would take the power of seven human souls to break the barrier that kept them imprisoned. They only had six. And so the Monsters waited and hoped, praying that another human would find their way to the Underground. Some thought the seventh soul would give their King the strength to break the barrier. Some dreamed of a human who would be their friend, and save them all...or had nightmares of one who would bring back the war.

...but nobody came.

...but somepony did.

Eons after the war, with no way to tell how much time had passed above, a tiny blue filly with wings and horn fell into the underground, calling for her Mama. None knew the poor creature's nature or origins...but her soul was powerful with magic, even more so than a human soul.

None can know what will come...of this little 'Woona'.

Cover art by Sanyo21

In the warmth of her cloud home, Rainbow Dash is about to turn in for the night when she hears Scootaloo crying outside in the middle of a vicious blizzard. Plucking the freezing filly from the snow, Rainbow hopes to provide some much-needed comfort for the otherwise tough young pegasus, but she uncovers a disturbing reality that she knows she cannot handle alone.

Knowing only one pony that could really help her out, Rainbow enlists Twilight’s help, determined to set things straight for Scootaloo. But what Rainbow doesn’t know is that in her efforts to provide a better life for the filly, her friendship with Twilight will develop into something more.

Edited by Alcatraz, Rated Ponystar, Rocinante, Ponysopher, Marshal Twilight, Knight of Cerebus, ShimmeringStallion, and Jake The Army Guy

Proofread by Neko Majin C

Spike has had enough of being treated as a slave instead of a friend. He works, cleans, does chores for Twilight and her friends, and gets abandoned. Being sick and tired of being used as a tool, an object for his so-called friends, he wishes for better life without them. Little did he know that his wish was going to grant him the best adventure ever.

While Spike is gone, Discord is going to disguise himself as Spike to see if Twilight and her friends are worthy to be Spike's friends or not. Change is on the horizon in Equestria for everyone. However, some changes are not for everyone.

Thenewbluebrony sent me a gift. An artwork of Spike's Fairy Tail Emblem on his chest. In honor of the gift, I've decided to make it my cover art image for the story after the 200th chapter.

I lost count of how many times the story was featured after 100 times but it started on June 16th, 2021 since I mainly publish chapters late at night. (Habit of mine)

(Spoilers in the Comments. You have been warned.)
(Please note that this is an alternate universe of Fairy Tail)
(Takes place before season 8. Also, an alternate universe)
Fairy Tail is copyright of Hiro Mashima