Ficool

Seven Sins System

Nanakawaichan
[Warning: Smut content, Tentacled MC, Monster Girls, MILF, Mature, R18, Harem, No NTR, No Rape] "I only accept an equivalent trade. A wish for a wish. Body or soul, which one will you give me?" It was the same offer every time a mortal summoned him, the crown prince of the shadow realm and the lord of wrath, Azrael Shadowraven de Nightfall. The demons bowed their heads to him. All creatures, mortals, and even angels feared him. However, everything changed after he was sent for a secret mission in the mortal realm to expand his seven sins power. Hiding his identity among the mortals, the vampires were attracted by his royal blood. The mortals were either jealous or admired his abilities. The angels were curious about him. The demons wanted to kill him and take over his power. Little did he know, he had another hidden power sealed inside of him. Something terrifying that could turn him either into the ruler of the three realms or an evil that could destroy all beings. -------------- *Most of my story has a big harem, I'm not interested in writing a small harem with only two or three girls. The MC doesn't treat his woman as a sex object. Non-consensual relationship also not my thing. Tags: Mature Content , R-18 , Smut , Incest, Comedy , Tentacles, Monster Girls , Yandere , Succubus , Magic , Demons , Angels , Hybrid , Hiding Identity, Goddess , Devil , Battle Academy , Beasts , Action , Mystery , Overpowered , Strong to Stronger , Harem , System , Servants , Handsome Male Lead , Smart Male Lead and a little bit of Slice of Life. -------------- Other works: *The Incubus System *Dragon King's Harem *Dark Moon: Rise of The Dark King *Demon Lord's Succubus (Completed) -------------- Cover by commission from Deviantart My Discord: https://discord.gg/mSRHyMVhnG
Table of contents
Latest Updates

Ashen Requiem

In the year 2030, Earth underwent a transformation as sudden as it was cataclysmic. Mysterious meteorites of unknown origin appeared in the solar system, evading all detection systems, as if they had materialized from nothingness itself. Fifteen of them—black and white—crashed into our planet, while an indeterminate number were lost in the vastness of space. At that time, humanity was already steeped in sin, moral decay, and pride. For some, the arrival of the meteorites was seen as a divine judgment—a brutal purification inflicted upon a world on the brink of perdition. These black and white meteorites carried within them supernatural energy, yet of diametrically opposed nature. The black ones, true catalysts of destruction, poisoned the environment and gave birth to chaos, madness, and mutation. The white ones, on the other hand, seemed to offer a semblance of blessing, though their influence remained ambiguous at times. Living beings exposed to these energies—be they human or animal—were forever changed. Many perished; others were transformed into monstrous entities or granted supernatural powers. But this so-called "gift" was in truth a veiled curse—those marked by corruption became outcasts, hated and hunted. The world, fractured, witnessed the collapse of several nations. Entire regions were quarantined and forgotten, while the so-called “Bastions of Light” became the final refuge of what remained of civilized humanity. The fall of the world dismantled all known structures. Ancient legends came to life, mythological creatures emerged—some lurking in the darkest corners of the globe, others awakened by the disruptions. Dimensional portals, rare but real, opened under the influence of the black meteorites, allowing demonic entities from elsewhere—known as "Cauchemar"—to infiltrate the human world. Humanity, overwhelmed, slowly descended into madness. And yet… amidst the chaos, figures rose. Heroes emerged from religious, scientific, military, and anarchist factions. Among them, one name stood out: Klein—a mysterious man newly elected Pope of a reborn organization known as "The New Church". He brought light and order where all seemed lost. Officially, it was he and his companions who saved the world from the first wave of collapse. But in the shadows of History, another truth remained. Jin, a rebel, a symbol of resistance, had stood against the Church and the World Government, which had formed in the aftermath of the catastrophe. Accused of crimes he did not commit, he was captured, tried, and sentenced to death. His execution was to take place in Almeris, the spiritual capital of the new world. On that day, war erupted. Jin's supporters launched a desperate attack to rescue him, unleashing a battle so devastating that it reduced 20% of the planet to ruins. Jin perished that day, along with most of his companions. But before falling, he made a solemn vow: to return. To take revenge. To honor the promise made to those who still believed in him. Since then, a rumor persists—Jin will return, and with him, the world will once again be transformed.
Ophicius · 2.6k Views