Writersblockills

After slumbering for years in the darkest pits of the abyss, Haruki Shin is awoken by the demon lord of lust. She tries to remind him of a contract he signed with her in exchange for the power that would help him exact his revenge in the mortal world.
However, who or what he wanted to get revenge on? He couldn’t remember. Replaced with a hazy mist, his memories had long since faded. But to the mistress of lust that didn’t matter as she forced him back into the mortal world with the demonic body of an incubus. 
Feeling lost he’s forced to adhere to each of her commands, and despite his refusal, he can’t resist the binds of the contract. Eventually, however, as he learns more about his tragic past, and the existence of the lustful system he’s been blessed with for his revenge, his path to becoming a monster finally begins.

[Warnings]:
Sexual content||Gore||Traumatic sequences||Mention of slavery and other heinous crimes||Step-relationship||Genderbending|| 

[Note]:
1. None of the heroines will cheat on MC
2. Does involve MC stealing other people's partners
3. Please let me know about any grammatical errors in any chapter through the comments.
4. MORE GOLDEN TICKETS = FASTER UPDATES!
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Absolute Depravity: Reincarnated with a lustful System

"You've always been like this since taking over your father's throne!" Escaping from her husband's clutches, Athena, the queen of the Marquis kingdom, yelled out in retaliation.

"Why the hell are you doing this Athena?!" Fuming from rage, Marquis got out of their bed and tried to approach her.

Trying to reach onto her perky cat ears, he stretched his arm forward but was instantly shot away with a slap on his wrist. Her teeth shut tight, and she grunted under her breath as her eyes kept glaring at her human partner.

"You know exactly why I'm doing this Marquis," being directly addressed by his name, the king's displeasure was apparent even to the blind.

Chapter 130 - Bickering Spouses And Prying Child