Descendant Of The Demon Saint (DMC Male Reader x Fire Emblem Three Houses

Arrival In A New World

(Y/N)'s P.O.V

Me and Nero are fighting Mundus who has finally returned to the human realm. I had Ebony and Ivory out and I was blasting him with charged shots.

"Give up Mundus your outnumbered and outmatched," I said as I put Ebony and Ivory away and grabbed Alastor and preformed a Stinger than an Air Raid.

"Damn you Grandchildren of Sparda!" Mundus yelled as he started to send beams of demonic energy at us. But Me and Nero jumped away from his attacks. "You will die here!" He said as I swapped to Gilgamesh.

As I was charging in ready to punch Mundus with a beast uppercut, Nero was trying to catch up to me but saw Mundus creating a portal."(Y/N), watch out! It's a trick!"

"What?" I asked but it was too late, as I was being sucked into the portal. "Crap." I simply said.

"Ha, it will be easier taking on the spawn of that stupid puppet, Vergil!" Mundus said with triumph in his voice. As he was distracted I grabbed ahold of him and signaled Nero to activate his Devil Trigger and use his devil bringer wings to send me and Mundus through the portal.

"Are you crazy? you won't be able to get back!" Nero said as Mundus was trying to break my grip on him.

"Just shut up and do it already!!" I said while tightening my grip on Mundus. Nero sighed and went into his Devil Trigger.

"I hope you know what you're doing (Y/N)," Nero says in his demonic voice while pummeling Mundus with a barrage of punches from his Devil Bringers until Mundus was dazed enough for me to pull him into the portal with me. after I pulled him in the portal closed Ebony and Ivory got destroyed and I fell unconscious.

Byleth's P.O.V

I was in a mock battle with my students, the Black Eagles, as a test by rhea to see if I can lead them well. after we won the battle a boy, who looked around the age of me and my students, fell from the sky and crashed into the ground.

"who is that boy?" I thought as Edelgard and I ran over to see what happened. once we got close to him we got a good look at him, he had white Hair like Edelgard and was wearing a red jacket with a black shirt underneath as well as a strange pair of gauntlets and boots.

"Teacher," Edelgard said then continued "what happened to him?" she asked.

"I don't know," I said as lady Rhea, the archbishop, came up to us.

 "Dear child, do you know what happened to him?" she asked peacefully,  but I just shook my head no. she then looked as if she felt something from him "we should take him back to Garreg Mach Monastery and let him heal, then we will be able to get the answers we seek." we all nodded and Ferdinand, with the help of Caspar, brought him to Garreg Mach.

(Y/N)'s P.O.V

I woke up in a room that looks like an infirmary and saw a woman who looks to be around her 30s wearing what looks like a dress. she walked over to me once she saw that I was awake. "Ah, so you're up that was some fall I'm surprised that you survived," she said.

"where am I?" I asked while I started to get out of a medical bed.

"you are inside Garreg Mach Monastery's infirmary. please come with me to the audience chamber, lady Rhea wants to speak with you," she said as she gestured for me to follow her. "I'm Manuela by the way.

when she opened the door to the infirmary she walked, with me following behind, into a hallway then to the right where we were greeted with a large double door. Manuela knocked on the door and we heard a voice. "Is that you Manuela? please come in." the voice, who must be this Rhea, said.

"Yes, Lady Rhea. she said and opened the door to reveal two girls one with long light green hair and light green eyes and a girl with long blue hair and blue eyes and a guy with dark green hair and eyes.

"thank you for bringing him Manuela, you are dismissed," the guy says and Manuela leaves the room. shall we begin the discussion, Rhea?"

the lady with green hair, who I now know is Rhea spoke. "yes, let us begin. I would like you to join the officer's academy as an assistant and student of our newest professor, Byleth Eisner."

both me and Seteth are shocked. when Seteth regained his composure he said, "are you serious Lady Rhea, we know nothing about this boy."

"I'm fucking 18 years old,  I'm not some kid!" I said a little pissed.

"See, he has no manners either," Seteth said in a calm yet stern tone.

"Please, Seteth let him explain himself," Rhea said reassuringly.

"as you wish Lady Rhea," he said to  Rhea before turning  his attention to me "I would like to know your name"

"My name is (Y/N), (Y/N) Sparda," after I said my last name both  Rhea and Seteth were shocked, while Byleth seemed intrigued. "was it something I said?" 

"See Seteth, he is a person you can trust," Rhea said completely ignoring my question. she looked at me and said "Tomorrow  I want you to meet our crest scholar, I want you to explore the monastery and meet your fellow students.

"Uh okay," I said then Byleth walked up to me, with no emotions showing on her face.

"I'll show you around Garreg Mach," she said and I nodded following behind her. "your fellow students of the Black Eagle house have been informed that you will be joining the class."

"Ok, so shall we  go to the classroom then?" I asked and Byleth just nodded and took me to my new class.

when we got to the class I was met with each of the students in my house. afterward, I explored the sections of the monastery that I was allowed to enter and I found out that I will be sharing a room with Ferdinand, who I learned was one of the two people who brought me to this place.

"Where are you, Mundus?" I thought while heading into my room and onto the makeshift bed that I will be sleeping on. 

The first chapter is done, I hoped you all liked it. The next chapter will be the battle at the Red Canyon, Zanado and the reader learning about his Crest.