As Sukuna in Invincible - Chapter 45: Conquest

Harem Dynast is the story of a princess set up in a political marriage with King Lorent, a great conqueror who is often mentioned in the Harem novels.

I, Zatiel, Abyssal Lord, Ruler of Death and Destruction, Nightmare of Dys, have AWOKEN!!!!!.

His life contains events that can shake the universe:
-Fighting against Tiamat, Creator of Evil Dragonkind, in the first circle of hell, while billions of demons and devils butcher each other beneath them
-Start a World War against the Heavenly Race, and transform himself into a Golden Sun while he slaughters their greatest warriors, the Archangel.
-Enter the Final Gate and fight against the Outer Gods.
-Tearing the nine levels of Baator during his battles against the Prince of Evil, Asmodeus.

With his memories as a ruler of the Abyss and a Universal Existence, Zatiel will rise again.

“Kill them all - every last member of House Grim must die tonight!”That was the last thing Renard heard before his world turned to ash. One night was all it took for him to lose everything - his family slaughtered, his home burned to ashes, all because the other Great Houses branded them traitors.They thought they wiped a noble line. Instead, they created a monster.Rising from the despair of losing everything, Renard became the beast Sovereign. He embraced the darkness and rose to the position of the 7th commander of the dreaded demon army.Leading an army of Demons and monsters, he brought three legendary Heroes to their knees and crushed four Great Houses to dust. But just as revenge was within his grasp, the champion of Humanity - Klean Weaver's holy sword pierced his heart.Renard thought that was the end.But something impossible happened.He woke up in the past, in a time when his family still lived and House Grim stood strong among the Eight Great HousesA second chance!A chance to change everything.That wasn’t all.For unknown reasons, he inherited the Legacy of the Devourer, a power that lets him consume the strength of his enemies.Was it a curse? Or a blessing? He didn’t know. But for Renard, it is simply a tool to protect what's his.The Lords of the Great Houses think they're untouchable in their high castles. They have no idea what's coming.This time, the Beast of House Grim hunts first!!

The aura recovered, and the spirits ran rampant.

Qiao Yuan picked up “Eternal Dragon Slayer”

【Simplified system loading】

【Scan to “Lion’s Roar”】

【Simplifying…】

[Simplify success… lion’s roar = big roar]

ha~

Qiao Yuan opened his mouth and yawned

[Lion Roar Skill Proficiency +1]

………………

In the distance, a lurking seventh-order Variant Spirit is slowly approaching.

Roar!

The Variant Spirit made a roar!

Qiao Yuan opened his eyes and looked directly at the alien spirit.

“What are you calling!”

“I ask you, what’s your dog’s name!”

………………

The oppression of death strikes

The alien spirit shivered and knelt on the ground.

“Listen to me, thank you, because of you, the four seasons have been warmed…”

- Description from novelbuddy