4 Book(s) Related to dungeon busters

Betrayed and sacrificed during a dungeon raid, Vaelith Drakar awakens as the last Dungeon Core, a forbidden existence capable of creating monsters and building an underground kingdom.

Hunted by humanity and the Holy Dominion, he must grow stronger while uncovering the truth behind an ancient war erased from history.
But as betrayal, loss, and revenge consume him, Vaelith slowly becomes the very monster the world fears most.

When Dorian Falco’s stepsister and secret lover was found brutally violated in a slum alleyway, the Mafia Don lost his fucking mind.
And he blamed me.
He dragged me into the manor's dungeon, throwing me to a dozen of his most depraved enforcers.
"Whatever Camilla suffered, you'll pay back a thousand times over."
I collapsed on the freezing floor, sobbing as I desperately clutched his pant leg. "I love you! I would never hurt her! Please, Dorian, believe me!"
Dorian only offered his cruelest sneer.
"Jealous that she gets the real thing? Fine. I'll make you filthier than she ever was."
He locked me in that blood-stained cell for seven days and nights.
His thugs, given carte blanche by the Don, whipped me with chains and violated me without restraint. I screamed Dorian's name in the darkness until my throat shredded.
Seven days later, Dorian returned with a recovering Camilla.
He stood outside the heavy iron door, his voice dripping with mock generosity.
"Crawl out here, Saoirse. Get on your knees, kiss Camilla's shoes, and maybe—just maybe—I'll let you live."
Silence. No answer.
Because three days ago, I had already died in that cell.

Introduction:

She was the daughter of a plutocrat, an elite with multiple identities, known and respected by everyone; she was a young girl from a rich family, who was peacocky and shameless, loathed by all.

After being reborn as her, she defeated the bad man and the angelic bitch, took revenge on the bad guy who killed her, married the noblest man, got into the sweetest relationship, and stunned the world!

Reporter, "Mr. Leach, what is your favourite thing in the world?"

Benson, "Jill."

Reporter, "Mr. Leach, what do you like to do most every day?"

Benson smiled, "Sleeping with Jill in my arms at night."

Juliana: ...

A favor that she could not refuse. It is the only way that she could get close to the man that she had loved secretly yet she will be only a shadow of her twin sister. She didn't thought about getting caught because she will be there for a temporary day but the secret revealed and her twin sister is the cause.