Owari no Chronicle - Volume 5, Chapter 4: Greeting at the Entrance

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

After reincarnating, he realized that he was endowed with a miraculous game-like system, which enables him to increase his own stats and transcend the limits of the human body. This system even has a game-breaking ability to save and load in real life!

In this new world that’s akin to a 2-D game, he just wants to enjoy life and head for a glorious future… However, he is quickly embroiled in a complex plot. Can he unlock his true potential and utilize his system to break the shackles that confine him and discover the truth about his previous body’s circumstances?

- Description from novelupdates

Five of the world's wealthiest tycoons descended upon a poverty-stricken district simultaneously, astonishingly just to visit a 20-year-old young man. This young man was their master fifty years ago. Initially, these magnates only acquired some rudimentary knowledge from William Johnson, but that was enough to make them leaders in their respective fields. However, they were stunned by William's ageless visage when they saw him again, as they were unaware that William Johnson had lived for a billion years. He not only established different religions all over the world, but even Alexander the Great was once his student. Yet, after dispersing the tycoons fifty years ago, he chose a long slumber. But now, William Johnson has awakened...

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In Zhenhai City, the Chu Family receives an imperial decree that revives the hope of reclaiming their ancestral title, but only if a descendant places in the top three of the Martial Examination. For young Chu Yangxiang, who unexpectedly discovers he has Grade 1 Martial Dao Talent, this honor seems within reach. Yet, as he rises, envy and family rivalries emerge, with the privileged Chu Xiaoxiang demanding loyalty—or threatening to ruin him.Determined and battered, Chu Yangxiang faces a brutal choice: submit or fight for his family’s legacy. Will he overcome these powerful?

Cao Xin, a young man on earth, died in a car accident, traveled to a troubled world where supplies were scarce, and obtained a “Bronze Immortal Gate”…

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- Description from novelbuddy