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

"Not so fast!" Using her wind magic, Riley flung herself forward to deflect the Arachne queen's claws about to be brought down on Haruki.

However, before she could reach her, the queen slashed through Haruki's neck and it tumbled off of his body. Watching in horror, Riley stopped in her tracks, and the others raised concerned eyes. None of them could believe what had happened, and their minds were only slowly catching up to the reality.

"There's no way…" Mumble Margarette, as Asuka breezed past her.

Upon noticing Asuka trying to approach Haruki, Riley flew over to her and held her in place by her arms.

"What are you doing, let me go?!" Cried Asuka, trying to free herself from Riley's grasp.

"Trust him," Riley whispered, knowing full well that the queen couldn't have defeated their master so easily.

Chapter 112 - To Crush a Bug