I Came Back And Conquered It All - Chapter 191

When I was reborn in South Korea, I wanted to live my life in peace. Pass the activation system, unlock the 'Big Brother' career, obtain the invincible system, and embark on the road to power

“Breaking News! A 28-year-old IT worker beats three university kids to death with a spiked bat over a dog!”Abandoned at birth, and named John Wicked, he suffered a life of solitude and harshness. His only companion was a dog named Alfred who was with him since he was 8 years old.Alas, on his 28th birthday when he was returning home from the company with a gift for Alfred, what awaited him was three university students beating his dog senseless--the reason being that Alfred barked at them.They escaped after beating him, too, but John Wicked lost his only family there as the sky broke into tears as if weeping alongside John, holding his dear companion's lifeless body.After getting revenge and being put on death row, John Wicked felt no regret for his actions, and the public also didn't support him.If the world didn't understand him, he didn't need to understand the world. He took his own life because he didn't want to die by the so-called justice of this world.But that wasn't the end. That was the beginning of John's new life after making a deal with an Eldritch God.Join John and Alfred's journey in the fantasy world where humans tame monsters and live an intricately connected life.

The world is terrorized by the powerful Black Witch who has been sealed in the moon. Every ten years, the night of Hexennacht arrives and a chosen witch must battle the Black Witch in hopes of finally defeating her.

As the current decade’s Hexennacht approaches, a mysterious girl named Kagami Kagami arrives and meets Horinouchi Mitsuru, the daughter of the previous Hexennacht representative.

It takes place between Kyoukai Senjou no Horizon and the City Series, two other series by the author.

What happens when a scientist from a futuristic world reincarnates in a World of Magic and Knights? An awesome MC is what happens! A scientist’s goal is to explore the secrets of the universe, and this is exactly what Leylin sets out to do when he is reincarnated. Dark, cold and calculating, he makes use of all his resources as he sets off on his adventures to meet his goal. Face? Who needs that… Hmmm… that guy seems too powerful for me to take on now… I better keep a low profile for now. You want me to help you? Sure… but what benefit can I get out of it? Nothing? Bye. Hmmm… that guy looks like he might cause me problems in the future. Should I let him off for now and let him grow into someone that can threaten me….. Nahhh. *kill*-

Alternative: Leylin is transported from an advanced technological era into a medieval world— except there’s magic. Equipped with “only” his quick wits and an A.I. chip fused to his soul, he sets out to become the most powerful magus the world has ever known. In a land divided into the Light and Dark Magi, the weak can either be cattle or disposable slaves. Only the strong can determine their lives, and only they have the luxury for virtue. Yet strength is only a tool for Leylin, like any other. His goal, in the end, is his own.