Start in DxD as Motohama: Leveling Up in Another World - Chapter 36: A level (I) beatdown.

BLURB> He was reborn by mistake. Raised with purpose. Loved by a god. Worshipped by monsters. And the galaxy doesn’t stand a fucking chance.Irvine’s soul took one wrong turn through the wheel of karma and woke up in a body grown by an intergalactic hivemind goddess with boundary issues and galaxy-sized ambition. Now he’s the golden child of a psychic swarm that feeds on control and burns whole worlds for affection.With Crystal at the helm, warriors like Kimchi, relic-weapons like Kiya, and a council of psionic horrors eager to call him king, Irvine must choose what kind of god he wants to be.Because when a hivemind learns to love......it doesn’t know when to stop.The universe will kneel—or get devoured trying.SYNOPSISIrvine didn’t ask to be reincarnated, but the cosmos had other plans. And it didn’t hand him a cheat code or a clean slate—just one random boon, selected by an uncaring divine roulette wheel.Good karma? Bad karma? Balanced as all fuck.Now he's reborn in the body of a psionically tuned alien hybrid, raised from psychic infancy by Crystal, the hivemind queen of a race so advanced they’ve abandoned individuality for shared omniscience. All except her baby boy.Irvine is the singularity inside the swarm, the first soul allowed to think, dream, and desire independently. Trained by warriors like Kimchi, advised by bio-symbiotes like Kiya, loved ferociously by hive sisters like Diane, and shadowed by powers ancient and unnamed, Irvine is both weapon and wielder, saint and sacrifice.But empires don’t run on hugs and handjobs. As Crystal expands her dominion—across star systems and sentient nebulae—Irvine must lead the charge through blood, fire, and psionic flame.His soul is still human. His body? Engineered for extinction. His heart? Not entirely his anymore.

According to a popular legend, the famous God of War of Great Liang, Huo Wujiu, was once captured by an enemy country. He had his meridians severed and both his legs broken before he was thrown into the prison. In order to humiliate him, that incapable ruler of the country gifted him to his cutsleeve brother as a concubine.

General Huo suffered a great deal of humiliation. He laid in wait for three years before he shed his cicada skin and returned to the Great Jing. He treated his crippled legs, and three months later, he led his army to storm the enemy’s capital. He slaughtered the emperor, razed the capital, and finally beheaded that tr*sh of a cutsleeve, displaying his head on the city’s walls for the next three years.

Since then, the world has been united.

——

A certain university’s history lecturer received a graduation thesis depicting the legend of Huo Wujiu, and he wrote a full page of criticism for the student.

Then he blinked, and he was transmigrated into the body of that cutsleeve prince.

There were lanterns and decorations everywhere. A man came, sending word that the disabled general of the enemy state had already entered the manor in his wedding sedan.

As he looked at the General Huo in front of him, taking in his malicious gaze, his tortured state, clad in a red wedding gown, Jiang Suizhou realised that even legends can come true.

This legend could even cause him to be beheaded in public in the future, with his head hung on the city walls for three years.

Jiang Suizhou’s only option was to take good care of General Huo.

In spite of the hidden arrows of the court’s political agendas and the incapable ruler’s endless attempts to humiliate him, he could only bite the bullet and bear the brunt of it; his only wish was that after three years, he could protect his own head.

Of course, he didn’t dare to even dream of asking this 3 meters tall “concubine” to serve him.

However, before the three years was up, General Huo’s legs recovered on their own.

He didn’t just slaughter the incapable ruler and unite the land under the heavens, but he also climbed into his own bed and pinned him down with a heated gaze, stubbornly wanting to establish his status as a concubine.

The female protagonist of this book is a zombie (probably!) The male protagonist of this book is an air (maybe, but you can’t see it?) The system of this book is a bastard (like to open a mouth too much?) Anyway, this is a story about zombie with a memory, going back to the past, but accidentally turning this book into a story of a savior! (Huh? What? There is a killer? No, believe the author, she really did not kill, really! (No wonder!)

The heroine said: The title of the book and so on are all fake!

- Description from Novelupdates

Some say he is the bad apple in a basket, that he’s rotting everything around him with disgrace and corruption.

Some say he is the biggest scum of the South Zhanbu Continent, that he’s colluding with the dark sects to cheat, steal, and commit all manner of atrocities.

Some say he is the most wanted playboy. “Lock your daughters at home to keep Fang Xing away!”

To all of those people, “That’s right, I am that big rotten apple. Any problem with that?”

This brand of anti-hero is a young orphan with poor prospects and nothing more than the keepsakes of his uncles. He plots, schemes, and orchestrates all manner of villainy in his quest for power and revenge, unafraid to live precariously and make enemies out of those he really should not.

- Description from Novelupdates