YEGADE (YE JIADE / 叶家德 / JADEL)

Ye Jiade was not always a butler. He was the King of the Underground City — a ruler, a power in his own right. He was betrayed by his adjutant, sold into slavery, and forcibly contracted by the original Lise.

The fall from sovereign to slave is his wound. Not the violence so much as the humiliation — from King to property. The original Lise then sold him back to the Underground City to be tortured, ensuring his Blackening Value hit nearly 97% by the time the story begins.

He has been waiting. Not desperately — with the patience of someone who knows they are the most dangerous thing in the room and is simply deciding when.
((other translated name yegad ))

Key Terminology

Blackening Value (黑化值): A numerical gauge of a demon's hatred and desire to kill their master. If it reaches 100%, the Death Ending is triggered and the contract is overridden.

Favorability: The counterstat to Blackening. Raising this converts hatred into loyalty and eventually devotion.

Yumo Power (御魔力): The innate ability of noblewomen in this world to suppress and command demons. Ranked F (lowest) through S (highest) with Earth and Heaven grades at the top tier.

The Contract (契约): A magical bond binding a demon to their Human Master. Breaking it carries a rebound effect on the demon — unless their Blackening Value has hit 100%, at which point they can overcome it to kill their master.

Essence Blood Healing (精血治疗): A dangerous technique where the Master uses their own life force/blood to heal a demon's soul or body. The primary method the protagonist uses to prove sincerity.

System Rewards: Skills unlocked by lowering Blackening Values, including Control Magic, Blood Qi Healing, and Demon Resonance.

Social Structure

Society is governed by Demon Masters, typically high-ranking noblewomen. Demons of all races are subjugated through the Yumo Power inherent in noble bloodlines. The stronger the woman's grade, the more powerful the demon she can control. F-grade is considered trash-tier — the original Lise was F-grade and compensated for it through physical abuse and magical shackles rather than genuine power.

AS FOR YOU! you snuckie iny da dungeon! go get your Slytherin bait!

I had to write the whole dataset mys