12 Miles Below - Chapter 1Book 3. :

Our protagonist Caam is a man from Earth that was reincarnated into this world as a demon. In order to survive, he spared no effort in avoiding the sparks of battle and without noticing it, he became strong himself.

Nikol didn't think that his life would end on that day.

He was invited by his elder sister to go on a cruise vacation. Since it was a request from her he couldn't reject it.

During this vacation, Nikol fell from the boat and died protecting his sister from an attacker, at least that's what he thought but he felt something pulling him from the ocean giving him a nostalgic and warm feeling.

When he opened his eyes there was a figure, that he could easily identify but at the same time, she was quite different from what he remembered.

“My son, Welcome back”

It was the last thing, he heard before he lost consciousness again.

When Nikol opened his eyes again, he was amazed to see a dense forest around him filled with greenery.

At that time, he didn't know that this land was called Femdom Island for a reason.

Come and Join Nikol to find his fate, in this unknown land.

Known as the country’s top onmyoji, Yuuma Kisaragi, who lived to the age of 99, awoke to find himself in an unfamiliar forest. A voice echoed in his mind, revealing that he had been reincarnated into another world at the age of 20.“Good morning, Master. Skip the greetings and please defeat the goblin in front of you.”The voice belonged to a skill acquired during reincarnation called “AI,” designed to assist Yuuma in his new life. When the skill, AI, took over the form of a golden-haired fox yokai, the familiar shape of Yuuma’s shikigami, he decided to embark on a new life alongside AI-chan.The onmyoji and AI-chan’s second life began, tackling various challenges and formidable enemies with the strongest spells and shikigami.

After being betrayed and killed by his own brother, 17-year-old orphan Elias Black is given a second chance—by a mysterious, demonic entity. Reborn with the “Devil’s System,” he must now collect souls, gain abilities, and exact revenge on those who ruined him.But each power comes with a cost—and the devil never makes a deal without expecting something in return.As Elias grows stronger, unlocking deadly skills and forming uneasy alliances, he faces an even darker truth: his rebirth is part of a much bigger, bloodier plan.