Night of Despair - Chapter 41: Secret Three

What if an alien baby born in the midst of a major conflict on another planet was sent to Earth to save his life? Born with intelligence and the ability to create technology from any material he touches, he was found by a couple in rural Japan and raised like a normal human.Despite his powers beyond reason, living in a peaceful world forced him to restrain himself. He grew up as a young man who loved high-tech superheroes, but never had the chance to realize his dream of becoming a hero.However, everything changed when he and his classmates were suddenly transported to another world—a world of monsters, war, and chaos. Seeing the helplessness of the humans in that world, he realized that this was the chance he had been waiting for.Not with magic, swords, or ordinary physical strength—he would become a hero with technological sophistication that surpassed any civilization!This will be Ren Takamura's story!

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

- Description from Novelupdates

Crossing to One Piece world, he became Roger’s younger brother.

After years of exhausting work as an editor, constantly meeting impossible deadlines and dealing with frustrating clients, he finally reached the finish line—his long-awaited vacation. No more emails, no more last-minute revisions, just pure, uninterrupted laziness.His perfect plan? Lock himself inside his house, watch his favorite shows, playing video games, sleep to his heart’s content, and embrace a life of pure relaxation.But just as he was about to enjoy the bliss of doing absolutely nothing… he woke up somewhere else.Not just anywhere—but in another world, inside the body of a young noble boy. And not just any noble boy—the second son of a Marquis, notorious for his laziness and bad reputation.Great. Just great.Yet, instead of questioning the absurdity of his situation, he did what he did best—ignored everything and went back to sleep.Unfortunately, the world refused to let him be.---[System installed...][Congratulations, Host! You have been chosen as the new candidate of this world.][Please complete the following task to finish the quest and receive a reward.][Warning: Failure to complete the quest within the time limit will result in consequences.][...][...][...Host?][Didn’t you hear what I said?][WAKE UP!]Zzzzz…And so, his peaceful days were over before they even began.Now, with an annoying system breathing down his neck, a family that already expects nothing from him, and a world filled with power struggles and danger, all he wants is to laze around.But will the world really let him?