Rebirth of the Supreme Immortal Emperor - Chapter 10 - Holding Your Hand!

While returning home from a boring day of work, a black hole opened up in front of John and sucked him in. Before he was floating in the blackhole, a helmet latched on to him. "Uploading A.I under progress...Activating Survival Kit" A weird robotic sound appeared within the conscious of John and suddenly a white energy enveloped him... After opening his eyes, John noticed he was teleported to a whole new world. A world of magic and he was a user of a system. Arkon, the world John was brought too, was a medieval world which is 10 times bigger than earth. This new world held many new mysteries and this was the beginning of John's adventure. John will dominate and stir the world with his new system. Old technologies begone and use my advanced techys instead! Ha! you want to hold a politic, economical and military war with me? Sorry but my system is too broken for you all to counter.

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

Lucas, a human transmigrated from Earth to a fantasy world, strives to live a peaceful life with his sister despite lacking special abilities or cheats. However, the world's cruelty shatters his tranquility when his beautiful sister is taken from him, and he is framed for her death. Devastated and powerless, Lucas is forced to flee.During his escape, Lucas grows stronger, eventually earning the feared title of the Demon God. Despite lacking inherent talent or cheats, his relentless pursuit of knowledge allows him to uncover his enemies' weaknesses, leading him to victory time and again.One fateful day, while praying for his sister, Lucas falls into a trap and is killed. His enemies have used his sister's memory against him, igniting a fury within Lucas as he dies, his final regret being his inability to save her. In his last moments, he wishes for a second chance to act first and protect his sister.[System Notification: Host has died a second time][Cheat Activation Sequence Initiated][Cheat Activated: Divine Mask - God Clone System Online]

Zero, a 35-year-old mercenary, after being betrayed by one of his teammates who told his enemy about him. He chooses suicide so that he can kill his enemy and his traitor teammate. After that, he was reincarnated into the world of magic, in the body of an 18-year-old teenager with the same name as him. However, his body does not have mana or the talent for magic. But with the help of the cultivation system, he has unrivaled power in the world and has a harem of beautiful wives.