Skill/System

Systems (系) of Skills are lines of Skills that share a common theme. There are five known Systems.

Angelic System
Angelic System (天使系) are a line of Ultimate Skills directly created by Veldanava, each bearing the name of angels. As they were too powerful, they were occasionally restricted to the Unique Skill level.

All the Ultimate Skills of the Angelic System are linked to Michael with narrow corridors called Domination Circuits (支配回路) directly built into them during their conception, making their holders subject to the absolute control of Michael.

Among them, the most powerful are the Skills of the Virtue System.

Virtue System
Virtue System (美徳系) refers to the seven Ultimate Skills born from isolating Veldanava's divine authority over creation. After the world stabilized, he kept Michael for himself, giving a few to those he considered worthy, and released the rest into the cycle of reincarnation to choose their own masters.

Demonic System
Demonic System (悪魔系) are Ultimate Skills born as counterparts to the Angelic System. Though born as imitations of the Angelic System, Demonic Skills boast the same potency as their Angelic counterparts. Demonic Skills, like their Angelic counterparts, also tend to choose their masters, occasionally sprouting within them as degraded Unique Skills.

Among them, the most powerful are the Skills of the Deadly Sin System.

Deadly Sin System
Deadly Sin System (大罪系) refers to the seven Skills corresponding to a person's fundamental desires.

World System
World System (世界系) refers to Skills that allow the user to create a unique world.

Known Non-Virtue Angelic System Skills

 * Astarte, Lord of Heaven
 * Azrael, Lord of Salvation
 * Haniel, Lord of Glory
 * Israfil, Lord of Judgement
 * Jibriel, Lord of Rigor
 * Melchizedek, Lord of Dominion
 * Sandalphon, Lord of Judgment
 * Sandalphon, Lord of Punishment

Known Non-Deadly Sin Demonic System Skills

 * Abaddon, Lord of Destruction
 * Azazel, Lord of Temptation
 * Belial, Lord of Underworld
 * Samael, Lord of Deathly Poison