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

Drawing out his flaming katana, Inferno raised it high as he was closing in on the enemy. Barely capturing the movements of his body, Haruki molded a blade of ice reinforced with hardened darkness.

"Swift, but-" complimenting Haruki, Inferno hastened his pace and circled behind his opponent in the smallest frame of a second. "Not fast enough!"

Hitting Haruki from the hilt of the sword, Inferno sent him flying. However, before the pain could register in Haruki's head, Inferno circled back once more and appeared in front of him on the other side.

"Ughhh!" Coughing up blood, Haruki's eyes widened upon seeing Inferno ready to kick him again the moment he got closer to him. "Dark ice-"

Even though he managed to come up with a spell to deter it from happening, the reminder of his promise to not use magic, made him stop before he ended up breaking it.

Chapter 255 - Clash of Ice and Fire