WN/Zero

Personality
Unlike Vega who was Given Aggresive Personality, He wasn't given personality but in exchange for that his Calculation is far superior than Vega thus he could be considered as Yuuki's Ultimate Creation

Background
He was Created by Yuuki via Unique Skill Creator

He was one of Yuuki's 300 elite subordinates

Ryuma Clash Arc
It's Mentioned that He and other 300 Yuuki's Elite Subordinate were gathered in Manor at Eastern Empire Capital under order from Yuuki in order to discuss about Coup d'etat Plan after that she was Purged By Kondou, Damrada, Miraza and Royal Knight No.7 - 10.

Tenma Great War Arc
Arios,Zero and Mai including 200.000 Angel was ordered by Velda to invade Holy Empire Ruberius.

Later under Zero's instruction Mai use Her Unique Skill Traveler to Teleport Arios,Zero and Mai back to Velda in order to evade Veldora's Ultimate Skill Chaos King Nyarlathotep's attack.

Abilities
As one of Yuuki's Top Subordinate his abilities is far above Average Royal Knight

Ultimate Skills

 * Weapon Lord Shield
 * Evil Dragon Lord Azi Dahaka

Relationship
Kagurazaka Yuuki

Trivia

 * Altought Arios is Leader of Seven Angel of Punishments, Zero is considered as the strongest Member of Seven Angel of Punishments
 * He could be considered as Vega's Little Brother