Possibilities: Angels of Equestria

Leo woke with a start, his phone's ringing resounding in his head. He picked up his phone with a groan escaping his lips.
"What in the seven hells do you want Cierra? Unlike you, I need my sleep." Leo said in a very annoyed tone. Cierra was really pushing it with the countless calls she made in the middle of the night.

"Oh Ha ha, very funny." Cierra said on the other line. Don't get me wrong. Leo and Cierra were the best of friends. It's just that Cierra often liked to use Leo in her very fucked up experiments. Because she knew he wouldn't die. He just wouldn't die. Due to him being basically immortal. And the fact that he was one of the best fighters she knew. Overall, a bad combination for Leo.

"Anyway, I need you to come to the lab tomorrow." Leo wasn't surprised. The only time Cierra ever called is if she needed help with some kind of suicidal or insane experiment. Tonight wasn't any different from the others.

"Oh god, if this involves another Narga-" Cierra cut him off.

"Oh no, this isn't anything like that. I'll show you when you get here. Now, go back to bed. You'll need all the energy you can get." Cierra hung up as soon as she finished her sentence. Leo removed the phone from his ear and stared at the disconnected message on it. He put the phone back on the nightstand and laid back into bed. He ran his fingers through his snow white hair as his thoughts roamed.

"I got a bad feeling about this... then again, when don't I when it involves Cierra?" Leo said with a sigh as he fell back into the blissful state of sleep.

In Ponyville, Pinkie's Pinkie sense was going crazy. She was shaking way more than the time Twilight didn't believe in the Pinkie Sense. She quickly made her way past the town square and to Twilight's library. She rapped her shaking hoof on the door and was answered by the librarian of said library.
"Twi-i-i-ligh-igh-t!" Pinkie said in between shakes.

"Hey Pinkie. There must be something big about to happen if you've been shaking like this all week!" Twilight responded as Pinkie stopped shaking.

"Huh. It stopped." Pinkie said with a confused and worried look on her face. Twilight seemed to pick up on her emotions.

"I'm sure it's nothing, Pinkie. You don't have to worry." Twilight said with an encouraging smile.

"If you say so, Twilight." Pinkie said in a cheery tone, remembering the last time she did that. She simply continued her day as if it never happened. Little did she know, they were about to have a new neighbor coming in today.

The next morning, Leo was trying to steal a few more hours of sleep, but the light of the morning wouldn't allow it. The light mercilessly assaulted his eyes. Normally, Leo would just cast a darkness spell for him to sleep longer, but he was too tired. Leo eventually gave in to the light and opened his eyes.
"Ugh, I have to see Cierra today.... This'll be interesting." Leo said with a half-scowl, half-smirk. Leo went down the stairs to be greeted with the fragrance of bacon and the sight of his sister at the stove.

"Good morning, Leo!" His sister, Ayane, greeted with her black bangs hanging just above her left brow. Every time he looked at his sister, he would always feel the pangs of guilt rise in his chest. He would never forgive himself for just telling her to run away when he was mortally wounded many years ago. He didn't know if she would be okay. Whenever he looked back on the day they were separated, he thought it was the only choice at the time. Oh, how stupid he was. She may have forgiven him, but he hasn't.

"Hey sis. Are Runa and Emily awake yet?" Leo asked as he walked down the stairs.

"No. Are you planning on waking them up?" Ayane asked, already knowing the answer.

"Yeah..." Leo said as a devious smile crept onto his face.

He crept up the stairs to Runa's room and opened the door to see a blonde girl with cat ears that twitched, but showed no signs of her waking up anytime soon. Leo found it convenient that she was facing the window. Another smile formed on his face as he pulled back the curtains. Runa's eyes shot open as she sat up.

"OH THE LIGHT!!!! IT BURNS!!!" Runa yelled as she fell to the floor with a solid thud.

"Well good morning, sleeping beauty." Leo said, trying to stifle a laugh, failing miserably. Runa sat up and stared Leo down.

"Leo!? That wasn't very nice!" Runa said in her naturally cute voice while faking a pout. She crossed her arms and looked away from Leo, as if to say she was very mad at him. This was the opposite. She could never stay mad at him.

"Hehe, I know. I just couldn't resist! Anyway, breakfast is ready if you want it." Leo left the room to try and wake up Emily.

Leo entered the room across from Runa's to see Emily with some of her pink hair in her mouth as she hugged her pillow. She was also wearing the nightgown she always seemed to have with her wherever she went. Leo woke her up gently by blowing into her ear, eliciting a small yelp from the equally small girl.

"Leo! What was that for?" Emily squeaked and Leo gave a quiet chuckle.

"I didn't want to wake you, since you look so adorable when you're asleep." Leo answered, a smile forming on his lips.

"Leo, stop talking about me like that!" Emily half-heartedly demanded with a blush forming on her face, earning her another chuckle from Leo.

"Alright, alright Emy. Just go downstairs and eat your breakfast. I have to leave soon."

Leo ran down the stairs and ate his breakfast in 2 spoonfuls, then ran up to his room to get ready for the day ahead. He put on a clean shirt, pants, his prized black trench coat and a necklace his mother gave him. It had the shape of a golden four winged angel holding a crystal in its lower wings. He slung onto his back a claymore made of a silvery metal that was given to him by his late father, Shugo. He then brought his affectionately named handcannon, Ragnarok, and put in on his lower back. The gun was massive. For a handcannon, at least. The gun had a length of 16 inches and weighed at least 18 kilograms. The barrel had a huge bore to accommodate the massive S&W .500 Magnum rounds it used. But this wasn't the only thing about this gun. It could change forms. It could be a rifle, a shotgun and a set of dual pistols. This was attributed to its Metalmorph core, courtesy of Cierra. I won't bore you with the details, so I'll just say that this gun is amazing and no human can handle its power.

He strode out the door, but stopped at the doorframe, feeling a familiar twinge that often told him that he had forgotten something. He looked over his shoulder and felt a sad smile creep onto his face. On his desk sat a black cape with a hood and a simple soulstone necklace with a dark halo around it. He walked over to the items and ran his hand on the cape. His memories of a certain late friend flashed before his eyes. He quickly shut these out and stared at the items.
"Don't worry. You'll never be forgotten..." He said sadly as he took the items off his desk. He raised them into the air and engulfed them with black fire, sending them into his pocket dimension. Feeling as though his friend was right beside him, he left the room with more vigor than when he entered.

He walked down the stairs to see a blonde woman his age in an ice blue cape and a white vest and skirt in the process of putting on a pair of dark brown light gauntlets.
"Oh, good morning Leo." Greeted the woman with a smile.

"Mornin' Irune." Leo said as he approached his fellow angel. He looked at her back and then to her face.

"How are your wings coming along?" He asked with a sad tone to his voice as he looked to the floor. He felt that it was his fault that her wings were broken in the Battle of Angel Division. She gave him a worried look and walked up to him.

"They're fine. Look, it wasn't your fault that they got broken. Hell, if not for you, I'd be dead by now." She said as she lifted his chin to stare into her eyes. Leo's face seemed to brighten up when she said this.

"I know. I just wish I was fast enough to save you the time to let your wings heal." He said as he ran his hand through her hair.

"So, you ready to go?" asked Irune with a smile on her face. Leo smiled and he responded.

"Yeah. Cierra wants my help with some insane experiment." Leo said and the two girls sitting at the table bolted to their position.

"Can we come?" Asked Runa and Emily in unison with the same pleading eyes that they always used when they wanted something badly.

"Eh, sure, why not? Maybe she won't make me do anything stupid when you're with me." Leo said with a shrug and they went outside to ride Leo's bike.

The ride to the lab was fairly uneventful, even more so navigating the lab. They eventually reached Cierra's lab to find it was a total mess. Various stacks of books and papers were scattered everywhere and there were many different stains on the floor. Leo could make out a couple of study desks and a bed somewhere, but he couldn't really be sure. He also saw a fairly well-kept place that housed three different game consoles. Of course she was organized with video games.

"Wow, what a mess. Cierra's a total slo-" Leo was cut off by a stack of books falling on him.

"I prefer to call it organized chaos." Cierra said with a smug grin on her face. Cierra was always a little bit messy with her looks and her workspace. She was wearing her signature red dress and lab coat. Her hair was unkempt from staying up all night, apparently playing video games.

"Morning, Aunt Cierra!" Runa said as she and Emily hugged Cierra. She sighed. She felt a little old when they called her aunt. But she was 20, so she had nothing to worry about.

"Morning, girls! Did Leo bring you here?" She asked and they gave hasty nods.

"Oww...Cierra, the hell was that for?" Leo asked from his position on the ground while rubbing his head. Leo got up as the girls greeted Cierra.

"Nothing. Now, follow me." Cierra said and Leo groaned. He was always dealing with this, so why did he never get used to this? They followed Cierra to a room with a small white cube in the center and Cierra left the room to go to the observation deck.

"Cierra, are you sure this is safe?" Leo asked, not so much worried about his safety, but more for the safety of the three girls in the room with him.

"Well, it is now." Cierra answered with a hint of disappointment in her voice.

Where the hell did she plan on sending me? Leo thought.

"So where are you sending us? Do we have to bring our weapons?" Asked Irune. Cierra brushed away a stray strand of her brown hair.

"1: you'll find out 2: yes, but leave them with Leo." Cierra answered.

"Alright. We're ready." Leo said as he put all the weapons in his pocket dimension.

"Alright! See you in a couple of years!" Cierra shouted cheerfully as she pulled down a lever and the cube starts to glow.

"Yea- Wait, What!?" Leo shouted as he realized what Cierra said. Couple of years? He had to stop this before he and the girls were sent to God-knows-where.

"Commencing experiment #7830!" Cierra shouted as the group disappeared in a flash of light.

"Portal to Equestria..." Cierra added.