Name: Y/N Rose Dragneel 

Alias: Ziggy, Yhwach, Your Majesty, The Almighty, The Demon King, and The Demon Dragon God.

Age: 16 (before) 400 (after, looks around 18) 

Hair color: black 

Eye color: silver (formerly) red (currently) 

Gender: male

Race: Human (formerly) Demon/Dragon (currently) 

Appearance: 

Personality: Kind, loving, caring (with certain people), cold sometimes, hateful, cruel, merciless, ruthless, (with certain people), prideful, battle lover, and bored (to everyone that is beneath him and to people who aren't worthy of his time). 

Likes: His army, dragons, demons, Arrancars, Quincies, Espada, Sternitters, his demons, training, sleeping, fighting, and killing those who have failed him.

Dislikes: Salem, Acnologia, perverts, Grimm, traitors, not having a good fight, unworthy opponents, failure, and anyone who stands in his way.

Family relatives: Summer (mother), Tai (father) Ruby (sister) Yang (stepsister), Qrow (uncle), Raven (aunt), Zeref (adopted brother), and Natsu (adopted brother). 

Powers and abilities: 

Superhuman: Speed, strength, endurance, agility, stamina, intelligence, indomitable will, and versatile. 

Skills: swordsmanship, marksmanship, hand-to-hand combat, martial arts, manipulator, and tactician. 

Dragon Slayer Magic: Fire, Water, Earth, Sky, Ice, Lightning/Yellow, Iron, Poison, Wood, White, Shadow, Light, Darkness, Diamond, Gold, Moon, Sage, Blade, Armor, Corspe, Clinging, Spirit, White Tiger, Azure, Sword Saint, Four Beasts, and Black/Apocalypse. 

Satan Gravity: 

Cat Leaper: 

Wormhole: 

Ankhseram Black Magic: 

Aqua Aria: 

Black Arts: 

Whiteout: 

White Arts: 

Transformation Magic: 

Requip: 

Protection Matrix: 

Aizen's Soul Reaper Powers: 

Yhwach's Quincy Powers: 

Arrancar Powers: 

Weapons: 

Reishi Sword: 

Kyōka Suigetsu: 

Facts: 

Y/N is one of the two Dragon Slayers who reached the rank of Dragon God. 

He is from an alternate Remnant where his family and friends died. 

Y/N built a ship capable if travelling to other world's called the Edens One. 

Y/N was adopted into the Dragneel family when ended 400 years in the past of Earthland. 

Like Zeref and Mavis, he was also cursed by Ankhseram to be immortal. 

He also created his own Etherious also known as Demons from the Books of Ziggy. 

That's all I could think of for the Bio, for now that is. There are some things I need to work on. 

1. His army 

2. When will he make his first appearance? (around Fairy Tail final season or RWBY after Volume 3) 

3. Will he have a harem? 

4. What demons do you want us to have? 

Let me know what you guys think at the comments below. Peace out and enjoy!