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

The moment Fay felt a pair of tentacles climbing up her legs, her whole body squeezed inward from shock. Breaking the kiss from Haruki, she moved her hand between her legs and shot an angry gaze at Asuka. Wearing a mocking smile, Asuka pulled Haruki's face back towards herself and pushed her tongue deeper into his mouth.

While coiling his tongue with Asuka, Haruki didn't notice the tentacles moving Fay's hands off of her laced panties. Pushing forward, he slipped her underwear to the side and began caressing her folds like a wet slimy tongue. All the while, Asuka reached down on Haruki's stomach while also keeping him bound with a kiss.

"Ugghhh!" Grunting out loud with her legs shaking from the sensation, Fay conjured an exact replica of Haruki's cock and forced it between Asuka's legs.

Finally, noticing the ordeal as Asuka yelped in shock, Haruki decided to make matters more equal.

Chapter 175 - Digging Deep Into Their Bodies[18+]