The two girls were transformed by the Demon King’s dark magic into Dark Magical Warriors. Sunrise Shine became Sunset Shimmer’s age when she transformed, and she wore a black and dark red dress with matching boots that looked like Sunset Demon’s dress and blonde and black hair that looked like Sunset Demon’s hair. Mystery Mint’s hair didn’t change, but her eyes became red, and she wore a black and dark purple dress with boots.

“An evil girl bringing darkness to the world with demonic magic, Shining Silver!” Shining Silver, Sunrise Shine’s new form said.
“An evil girl with demonic magic that makes happiness and friendship fade away, Black Mystery!” Black Mystery, Mystery Mint’s new form said.
“We’re the Dark Magical Warriors, and we are here to destroy all your hopes and dreams for a world with harmony and the magic of friendship! Let the battle begin!” both of the Dark Magical Warriors said.

The real Magical Warriors fought the Dark Magical Warriors, who used dark versions of the attacks Shimmering Love and Fire Beauty used. The battle lasted for what seemed like forever, but after 5 minutes, Shimmering Love and Fire Beauty were nearly exhausted. “It seems like you surrendered to us and we won! That means the Demon King might use us as his assistants when he takes over the human world!” Black Mystery said.
“Do you have anything nice to say to the Demon King, who gave us amazing powers?”

“We have a great leader here. Everyone must obey him and be loyal to him.” Fire Beauty lied, sounding as if she was actually obeying the Demon King once again. “However, two idiots may appear and try to ruin his plans. This may cause the demons of the Demon World to worry about The End of Days due to the fact that those two idiots saved the human world, and you know what? I’m happy about that!” Snips Demon, Snails Demon, and the Demon King looked disgusted, because after she made the “two idiots" statement, they knew she was joking about how she liked the Demon King again, and was instead talking about how she would defeat him.

“I’m sorry. You’re acting like a complete idiot and ruined the good news of MY takeover.” The Demon King said. “We’re going to the human world, so you better hurry up to the portal I created and get inside the portal right now.”
“Maybe when I go to the human world, Sunset and I will have a better life. I can always protect her as my human daughter like I used to do when I was in the human world. I don’t care if I watch the human world vanish, because Sunset Shimmer will tell me how to survive, seeing as I took her to an alternate dimension where she made great friends who knew how to survive an End of Days scenario.” Fire Beauty explained.

“Wow, you really do care for Sunset Shimmer!” said Snails Demon sarcastically.
Then, the Demon King smiled at Shimmering Love and Fire Beauty, and said “Spoiler alert: I was bluffing when I said we were all going to the human world. I actually meant that only Snaps, Snulls, Singing Slither, Bleak Misery, and I were going to the human world to destroy it. You two must stay here in spirit only.” Snails got the Demon Spear from the Demon King and used it with Snips.
“All of your world is lost, it will soon be gone, so say hello to oblivion!” they said, summoning a red beam that shot at the girls, knocking them to the floor. The Demon King evilly laughed when he saw the girls were dead.
“You…you killed them! Just like how the servants killed the Demon Princess, Raine, and the Perfect Demon in The Legend of the Demon Princess!” Diamond cried.

“They never liked me, because they were planning on ruining my plans! A decision had to be made. We will be leaving for the human world now and you will stay here for the rest of your life…or Snips and Snails can kill you like they did to those Magical Warriors.” the Demon King explained. But just then, Diamond and the Demon King saw a glowing light.

“Who says that we weren’t alive? The hope and bravery we gained as Magical Warriors was able to protect us and not let us suffer a fate like the Demon Princess!” explained a voice that sounded like Shimmering Love.
“What? I can’t believe a human and a demon who temporarily obeyed me would survive being shot by the ray of the legendary Demon Spear!” the Demon King yelled.

Not only did the Magical Warriors survive, they changed into more powerful forms: Shimmering Love wore a light pink dress with a skirt that had light pink and light yellow stripes, similar to Sunset Demon’s normal dress. Her hair looked like her human form, except she had a longer ponytail. She also had light yellow shoes with light pink diamond emblems on them, a crown with a hot pink diamond emblem in the center of it, and angel wings. Fire Beauty’s outfit had a red coat over a light orange dress with five heart emblems on it. Her fiery hair and tail also became longer in this form. “We will defeat you once and for all, Demon King! We have gained enough power to do so!” shouted Fire Beauty.

A giant light pink heart appeared in front of the girls as soon as they held hands together. “Our magical mission is almost completed, my best friend, and soon, we will be able to bring a bright tomorrow to the human world, the Demon World, and the Sunny Dimension!” Shimmering Love said.
“Oh, magic of the Demon Princess, who we were reincarnated from soon after her death, give us the strength to bring an end to the evil that threatens the world! With just a clap of our hands…” Fire Beauty said.
“And with the new magic in our wands…” Shimmering Love said.
“There will be a happy ending for everyone, and the whole world will honor us as heroes! Legendary Warrior Finale!” the two girls said. The light pink heart produced a rainbow that wrapped around the Demon King and the Dark Magical Warriors, defeating the Demon King and returning the Dark Magical Warriors to their human forms. It also restored the memories of the demonic Snips and Snails that had been erased by the Demon King.

The girls then saw that the demonic Snips and Snails were staring at them happily. “Thanks for restoring everything back to normal, you two! I was thinking that Sunset Demon, also known as Fire Beauty, should be the new Demon Princess.” Fire Beauty then said, “It would be a pleasure to be a Demon Princess, just as long as you don’t try to hurt me with that Demon Spear.” Then, the demonic Snips and Snails laughed.
“We’re never going to hurt you with it again. We’ll give that legendary item to you. You can use it in emergencies to protect the kingdom against evil.” Snips explained.

“What will happen to Sunrise Shine and I?” Mystery Mint asked.
“I’m going to send you two back to the universe where you came from, and I will give you these Revival Warrior Crystals, as well as two Temporary Magical Warrior Crystals.” Shimmering Love said as she gave Mystery Mint and Sunrise Shine six rainbow-colored Warrior Crystal and two light pink-colored Warrior Crystals. “The Revival Warrior Crystals can revive people who have died. Just use these gems on Twilight Sparkle and her friends in your universe, and they will be revived. When you encounter Sunset Demon, the Temporary Magical Warrior Crystals will glow at the right time in the battle, transforming you two into Magical Warriors. You will be able to turn that universe’s Sunset Shimmer back into a human with Twilight and her friends.” Shimmering Love explained.

“Everyone, I’m going to leave now. I know that we’ve only spent a few months together, but please remember me!” Shimmering Love said. Just then, Snails Demon came up to Shimmering Love.
“I’m going to miss you the most, Shimmering Love!” Then, he kissed her, making Shimmering Love blush and smile. “Goodbye, everyone! I hope that Sunset Demon will rule your kingdom well, Snips Demon and Snails Demon. As for you, Mystery Mint and Sunrise Shine, good luck on your battle in your universe!” Shimmering Love said as she walked into the portal. After Shimmering Love walked into the portal, Mystery Mint and Sunrise Shine were teleported back to the alternate universe, and Fire Beauty’s powers disappeared, reverting her back to her normal self.
“I hope you have a great life in the human world, Sunset Shimmer.” Sunset Demon said with tears in her eyes.

Sunset Shimmer was teleported back to Twilight Sparkle’s apartment in her normal outfit. She knocked on the door, and Twilight Sparkle answered it.
“Good morning, Sunset! Where were you last night? We were worried about you!”
Sunset walked in the house to join the others for breakfast and said, “Well, you might not believe this, but…”
“You met up with that demon girl you keep talking about and she sent you to this world where all of us were dead and demons took over the world, and you met new friends and found out that world wasn’t safe, so you came out of that world, made that demon girl nice so she could fight with you again, and you both defeated a demon king, making the demon girl a princess of that demonic kingdom!” Pinkie Pie explained.

Sunset Shimmer and Diamond were shocked. “How did you know that?” Sunset asked.
“Just a hunch!” Pinkie Pie said.

After the girls had breakfast, Sunset Shimmer went home. When she was dropped off at her house, someone opened the door. It was none other than Snails Demon.
“Sunset, I wouldn’t leave you alone in the human world, now would I?” he asked Sunset.
“Neither would I!” Snips Demon said, appearing suddenly at the front door.
“I’m so glad that you guys came back for me while Sunset Demon is being a Demon Princess!” Sunset Shimmer replied happily.
“And we have good news, you are invited to Sunset Demon’s Princess coronation!” Snails said.
“Wow! That’s amazing!” Sunset Shimmer said. This made Sunset Shimmer happy, but at that moment, Diamond came inside the house.

“Sunset Shimmer…I have bad news. Since you and Sunset Demon completed your task to rescue those three worlds, you two no longer have to be Magical Warriors.” Then, the transformation trinkets the girls used to transform into Magic Warriors de-activated. “Farewell, Sunset Shimmer!” Diamond said, leaving for her home in the Sunny Dimension. Sunset Shimmer was sad that Diamond left and that she lost her Magical Warrior powers, but she knew that she would still be Sunset Demon’s friend as long as their lives lasted.

The End

Author's Note

When the Demon King misspells who is coming with him to the human world, I did that on purpose, in reference to how Riff-Raff accidentally pronounced Magenta as "Magenter" in The Rocky Horror Picture Show during the scene where Riff-Raff is going to kill Frank N Furter.