Goblin Kingdom - Volume 1, Chapter 26: Legend

I became a scientist for an evil organization.…But I’m too competent.

In her previous life, she was a highly respected Heavenly Empress, but on the eve of her wedding, she was betrayed and died by self-immolation!

Reborn as the abandoned daughter of a broken dog family, she was bullied, however, the one who hurt her is above her and enjoying the prestige!

Once reborn, the phoenix flew into the heavens once again!

Taming divine beasts, coagulating the Force, mastering the art of healing and poison, and controlling the life and death of the gods!

She vowed to make those who betrayed and abused her suffer and return the torment a hundredfold!

He is a weak and gentle King Li, and the King of the Night, who holds the world in his hands, but for one person, he has devoted his life to her.

He promises to make sure that the only person he has ever loved is safe and happy, forever living in bliss.

She thought the journey would be filled with blood and tears, but she didn’t know that what awaited her instead was a lifetime of premeditated, luxurious favours!

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

To take a dragon's hoard is to challenge death.The greatest of the sea-drakes wakes, curled on his silver throne; but there is no silver. His hoard is stolen. He rises, screaming, and chases the thief to the ends of the world—only to be shot from the sky.But dragons do not die easy, and never one with such festering hatred. A dungeon core rises from his corpse.If he intends to survive so near the cove of pirates that slew his past self, he'll need to master his powers—and quickly. For these pirates are dragonslayers; they won't be felled by mere mushrooms or spiders.Beneath the lawless Calarata, the young dungeon core will have to fight to survive; and one day, he will return death to the man who killed him.