Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 1 - 1-6. The Marketplace, the Princess and the Slave Trade

Who says I am a worthless student, the pretty Alliance Leader is within my grasp.

Who says I am a single man, a harem of huge numbers waits upon me.

Watch how the strongest senior high school student in history, Li Fan, turns over the city upside down, becoming a hero unparalleled under the heavens!

My wife is the martial alliance leader, and I am the strongest senior high school student, Li Fan! I’m waiting for all of you to drop in to discuss the rules of Jianghu!

- Description from Novelupdates

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

In the year 3021 of the Western calendar, the last world war broke out and the earth was destroyed.
A group of survivors left their homes to settle on new planets. New races, new classes are born. Cities began to be built, countries rose one after another, conflicts between different races intensified, and social order was re-established…
The transformation from a survivor to an aggressor was but a moment.
This is a world where the strong are respected and the fittest survive.
Shang Ping was reborn from the earth in the 21st century to this planet. The moment he woke up, his fate had already begun to change.

Content Labels: Strong Soul Conversion Court Marquis Heaven’s Chosen
Search keywords: Protagonist: Shang Ping ┃ Supporting roles: Solan Edrich, Liu Xi, Austin ┃ Others: future time and space, battleship, interstellar war, rebirth, distant starry sky

- Description from novelbuddy

I remember the story of a novel I had read in my previous life just before my marriage. If you don’t mess up the wedding, you’ll be poisoned by your husband! So I kissed the pastor who was in charge of the ceremony.

“Commander, are you alright?” shouted one of the holy knights as he approached the pastor who was kissed.

Huh, what?

Wait … are you the commander of the Holy Knights?

****

Rurutia, who was about to die, wanted to spend her last moment in a temple where she felt at ease the most. She started a business with her friends for the temple, and it was a big hit.

“Miss, you have the world in the palm of your hands!”

“Are you a God who has descended to Earth?”

In the midst of being embarrassed by the large crown, the commander of the holy knights himself was also acting strange.

“All I wish for is to be your husband,” he said, his eyes shining with obsession. “Take responsibility for stealing my first kiss.”

This is all so wrong.

It seems that I changed my future.