Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 3 - 3-5. The Japanese in Different World

On earth, Felix is just a normal guy, a bit of a loner but otherwise normal. In the multiverse, under the rule of The System, he's a caster. Fascinated by magic and hungry to learn, grow and discover, this series follows Felix on his adventures through the integration and beyond.

The story about a family's struggle to ensure that, above all else, their youngest escapes from the mines where he was born into slavery. Follow Alistar as he struggles through terror and tragedy, embarking on a road to discover himself and his heritage.

A man who had emerged from the world’s most secure prison—God of Death Island, known as a super-powered being called the God of Death, had grown tired of the bloody storms abroad and now, like a hidden dragon, he had returned! But due to an accident, he became the contract husband of a beautiful CEO! From then on, he ruled the city, crushed the petty and wicked, and embarked on the tyrannical journey of an urban legend!

When the game reappeared in reality, the world went crazy.

Shang Yinhe originally thought he was just playing games, until he horribly discovered: All the games he has played are reproduced in the real world!

The world turned to a strange trajectory.

Expert: There must be a mastermind behind the earth’s change!

Shang Yinhe: That’s me.

Crowd: The brave man who saves the world has a beautiful face!

Shang Yinhe: That’s me.

Earth: Thanks to the Guardian Alliance for protecting me.

Shang Yinhe: That’s me too. #It’s me, it’s me, it’s me#

- Description from Novelupdates