The Misfit of Demon King Academy (WN) - Chapter 13.1

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- 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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- Description from Novelupdates

Once upon a time, everything was awesome on planet Earth.People were chilling with their families, tech was super advanced, and they could even travel way out into space. Animals taking care of the food chain like they always do.But then, bam! Something crazy happened, and everyone got zapped to this super-dangerous place along with some weird alien folks of many types.Follow Lucas, a regular dude, as he tries not to get wrecked in this crazy new world.Some folks got cool skills to survive, but all Lucas got was the power to build a fancy shelter that could level up. Sounds lame, right? But turns out, it might be his ticket to not getting squashed.So, get ready for Lucas's wild ride as he figures out how to survive in a place that's basically a nightmare. While others are doing ninja moves or casting spells, Lucas is just trying not to get eaten. Little does he know, his so-called bad luck might just be the thing that saves his sorry butt.Join Lucas in this epic adventure full of surprises, where he builds his shelter, faces crazy challenges, and learns that sometimes, what seems like the worst luck ever can turn out to be a total game-changer.It's a story of survival, discovery, and how even the simplest guy can rock a world that's turned upside down.