Stranger's Handbook - Chapter 4: World Structure

She thought a contract was just business.He called it a FUCKAHOLIC contract... pleasure without promises, desire without attachment.I was supposed to keep my distance, stay professional, and survive the mess he called “fun.” But Aec didn’t play by the rules. He was cold, dominant, and utterly irresistible, a storm I couldn’t escape.Then came the night that changed everything. The accident. The absence of his presence in my story. A month gone in darkness, only to wake up to a world that had moved on… and him married.Now, our lives are tangled in ways I never imagined. His company, my career, and my heart are all on the line. Some heartbreaks don’t end in goodbye. They return colder, richer, and wearing a wedding ring.Will I crumble under the weight of betrayal… or rise to claim my own story?

Poison — a cold-blooded assassin, abandoned by his family and cast into the shadows of the underworld. He lived without purpose... until a supreme being took notice.Just like that, everything changed.---In a world of swords and magic, rumors spread of a strange, otherworldly café. A place where both mages and ordinary people can enter foreign realms, fight legendary battles, and return with enhanced magical power and understanding.But there’s one rule whispered by all who know of it:Never offend the owner.He may look lazy, uninterested, and far too calm...But those who challenge him are never seen the same way again.They become “special slaves” — forever bound by punishment and magic, trapped in service to a man far more terrifying than he appears.---He owns the café. He controls the worlds. And now, he’s just getting started.

Far in the eastern corner of the world lies a city covered in chaos, Aetherpolis. A city that is far more different than any other, a ruin where law and order are mere fantasies. This place isn’t governed by the government nor military powers. This city….. belongs to the gangs.And at the top of the food chain stand those with terrifying strength. The Awakened Users.These are individuals who have unlocked their Drive Core, a latent force within every human that responds not just to strength or talent, but to pain, trauma, and intense emotions. Only by facing these can the Drive Core bloom.Into this brutal world steps Ren Asakura, a quiet teenage swordsman with his Tempest Drive. On a quest to find his lost brother, he joins the well known gang ZEAL, determined to dismantle the corrupt and violent gangs that rule Aetherpolis.But every turf war brings him closer to a chilling realization, the true enemy has yet to reveal themselves, and the battle for the soul of the city is only just beginning.In a world where power is earned through suffering and only the ruthless survive…You either DRIVE forward or you BREAK.

“I want to be a true demon.”

A boy not older than 20 years wished as he looked at the sky.

After suffering from the trauma for many years, he finally gave up on life.

People called him ugly, demon, and hideous.

He bared with it, but today he finally broke.

With a piercing pain in his chest, he died.

When opened his eyes, Logan found himself in another world and inside the body of a demon.

His wish was granted, but at what cost?

He had no power and was the lowest among the demons.

No one to help, no one to be with him.

But it did not affect Logan. Because he had something else with him.

‘Sin and Virtue System.’

Guiding him towards his goal to become a true Demon.

Logan’s conquest has begun, so be a part of it.

Otherwise, you will miss him.

The true Demon!

However, is the MC the 'only' one to have a system?

Hm?

Read the fucking novel and find out!