Toaru Majutsu no Index - Volume 3, Chapter 4: Accelerator. Level5(Extend).

The good-natured Hou Yuxiao arrived in a martial arts world clearly divided between good and evil with a magical dual-colored lotus flower and became the Family Head of a small, insignificant Demon Path family in a county town, overseeing three younger brothers and a sister.The second brother was hot-tempered, the fourth brother was prone to fratricide, the youngest lived amongst the Demon Path but spent all day studying Confucian classics, and the only sister turned out to be a...Looking at the four problematic children, Hou Yuxiao fell into deep thought!It was a time of great contention,with Dynasties desperate for virtuous talents, seeking to stabilize their reign over The World,with sects dominating certain regions, aspiring to tower over all living beings,with families carrying on centuries of legacy, aiming to pursue happiness forever,with gangs reigning supreme, striving to build everlasting power,with academies resolving doubts and imparting knowledge, hoping people would promote the practice of farming and reading to future generations,...Thousand-Faced Handsome Man Hou Yuxiao, Black Extinction Demon Blade Hou Yucheng, Nation-Topping Demon Consort Hou Yuling, Blood Sword of Sunrise Hou Yujie, and Saint-Overturning Demon Confucian Hou Yuduan...Years later, looking back, the Hou Clan had already ascended to the pinnacle.

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

When an S-class elite assassin-raised captain of a special ops suicide squad comes home from a high-stakes Africa mission, he finds himself offered something that could potentially set him up for life- a curious assignment that he could use to finally exit his days of war and slaughter.

Then placed into a high-school setting, Lin Yi is tasked by the chairman of a top-tier multi-billion company with bodyguard duty for non-other than his own daughter, a certain little Miss of said high-school.

His enemies, once ranging from drug lords, mafia bosses, political figures, and national leaders, are soon replaced with spoiled kids who happen to have rich papas and mamas, and Lin Yi finds his intense expertise and high-threat skillset misused, and very underwhelmed…

But he does get a harem cast as diverse as his old enemies, so Lin Yi decides that, for the sake of messing around with girls as an invincible entity in a down-leveled environment, leaving his bloody and death-filled war days behind is something he’d definitely want to strive for.

- Description from Novelupdates

Xiao Qingrong had no mother and no father. With his own ability, he climbed to the peak of life, then encountered a system who could shuttle him across time and space. “Do you want to become a male god?”

He turned into a 17-year old, weak chicken with two years left in prison, Xiao Qingrong coldly interrogated the system. The system, playing dead, threw a powerful pill.

#In short, this Male God always threatens his Super Male God System#