So this is different from the original idea I had. Now this story is a crossover with Shin Megami Tensei, however it borrows ideas from multiple games across the massive franchise. Some of those games include SMTV, SMT3 Nocturne, Digital Devil Saga, and Persona to name a few. I will give some more context after the bios. For now let's meet the Demonic Outcasts!

Name: Vincent Bernardi

Age: 17

Species: Demi-Fiend

Hair Color: White

Eye Color: Violet

Height: 5 Foot, 11 Inches

Family: Vivian (Mother)

Love Interests: Moka (Outer/Inner), Mizore

Personality: Cold, standoffish, not fond of other people, doesn't believe Demi-Fiends will ever be accepted, strained relationship with his mom, is good deep down.

Demi-Fiend Form

Name: Varna

Rank: S-Rank

Height: 8 Foot, 9 Inches

Immunities: Ice Magic, most aliments and charms.

Weak: Fire Magic

Demi-Fiend Abilities

Immense Strength: Demi-Fiends are gifted with the overwhelming strength Ancient Demons are known for. Varna heavily focuses on physical combat, so his strength is even more amplified.

Power Through Devouring: The unique ability of the Demi-Fiends, by Devouring Ancient Demons, Demi-Fiends absorb their Magatsuhi further increasing their power. Demi-Fiends can even learn the magics and abilities of other Demons through consumption.

Retractable Arm Blades: Long Curved arm blades that fold out from the forearms of Varna. Incredibly sharp they can even cleave through solid steel. These are Varna's primary weapon.

Ice Magic: Inheriting his affinity for Ice from his mother, Varna can easily conjure ice and utilize it in combat. He can even coat the blades in his arms with ice to further boost his attacking power.

Bio: Vincent Bernardi wishes he could've been born normal. The son of a human man and the Demon Vivian, Vincent was born a Demi-Fiend, a being with the Body of a Devil and the Heart of a Human. His mother abandoning him at a young age and a father who barely wanted to raise him, Vincent was forced to take care of himself. His heart hardening as he realized humans feared him and Demons hated him, Vincent began to rely solely on himself. Receiving and invitation to Yokai Academy from one of its teachers, Vincent agrees to attend out of desperation more then anything else. The young Demi-Fiend has no intentions of making friends. However a pink haired Vampire might just force him to open up.

Name: Isafumi Kobayashi

Age: 35

Species: Demi-Fiend

Hair Color: Black

Eye Color: Gold

Height: 6 Foot, 2 Inches

Occupation: Teacher at Yokai Academy

Love Interest: Shizuka Nekonome

Personality: Kind, cares about his students and coworkers, frightening when angered, incredibly loyal to Tenmai Mikogami, hopes to help Demi-Fiends become more widely accepted.

Demi-Fiend Form

Name: Indra

Rank: S-Rank

Height: 9 Feet, 7 Inches

Immunities: Electricity Magic (Absorbs), Wind Magic.

Weak: Ice Magic

Demi-Fiend Abilities
Immense Strength: Demi-Fiends are gifted with the overwhelming strength Ancient Demons are known for. While Indra does not specialize in it, he can still be formidable in a physical battle.

Power Through Devouring: The unique ability of the Demi-Fiends, by Devouring Ancient Demons, Demi-Fiends absorb their Magatsuhi further increasing their power. Demi-Fiends can even learn the magics and abilities of other Demons through consumption.

Electricity Magic: Indra is incredibly talented in the ways of Electricity Magic, being able to generate gigantic bolts of lightning or rain down entire thunderstorms by channeling the element through his right arm.

Wind Magic: While not as talented with Wind Magic as he is with Electricity Magic, Indra still proves to be a force to be reckoned with. Generating gale force winds and tornadoes takes little effort from the Demi-Fiend.

Bio: Isafumi Kobayashi knew how close he was to being like many of his species. His parents murdered for having a him, Isafumi nearly lost himself in his rage. However one man's interference saved him from his festering rage. That man was Tenmai Mikogami, the Principal of Yokai Academy. Tenmai gave Isafumi a chance to be more than a wandering loner who fights desperately to survive each day. This inspired Isafumi to try and pursue bettering his species. Becoming the Ancient Demon History Teacher at Yokai Academy, Isafumi teaches his students the dangers of Ancient Demons, hoping to help them learn to defend themselves. Furthermore he has invited Demi-Fiend Youths to attend Yokai Academy, hoping to teach them coexistence. Unfortunately the first student to accept is rather standoffish and aggressive.

So that's Vincent and Isafumi! Now I will quickly go over some basic lore to flesh out the place of Ancient Demons and Demi-Fiends.

Lore
Ancient Demons: The Inhabitants of Hell who serve Lucifer himself. Ancient Demons are the first Supernaturals to ever exist. Many Ancient Demons hold incredible power, even weaker Ancient Demons having power that could challenge an S-Rank Yokai. They bide their time, waiting for a chance to once again conquer the human world. They see Yokai as Inferior to themselves.

Angels: The Servants of the Heavens who carry out God's will. They are the primary opposition to the Ancient Demons. Wielding divine power and having unwavering discipline and loyalty, they are the most effective army in existence. They tolerate Yokai, but believe they have no place amongst humans. They pity Demi-Fiends, seeing them as cursed beings who are doomed to suffer, never being able to obtain salvation.

Demi-Fiends: The offspring of a Human and a Demon, they are described as having the Bodies of Demons and the Hearts of Humans. This combination gives them overwhelming power yet the emotions to temper such power. Feared by humans due to the unnerving aura they give off. Hated by Demons for being part human and having the ability to devour them to gain power. Demi-Fiends are outcasts through and through, many living isolated lives, fighting to simply survive in a world that does not want them. Demi-Fiends have two names, their Human Name and Fiend Name.

So that's the basic idea for this story! Please let me know what you think of this concept as I've wanted to do a Rosario+ Vampire story for quite some time now and I think I've come up with a really solid premise. As always please leave your thoughts and opinions in the comments! I hope to see all of you in the Prologue of Rosario + Vampire: Demonic Outcasts!