I Can Devour Spirits - Chapter 87: Bizarre

300 years after becoming a Demon King, the war angel Ansel faced a serious problem during a certain expedition.

——His halo grew out once again.

Ansel picked an auspicious place that was definitely and absolutely unmanned, and while cursing, he simply and skillfully broke off the newly emerged angelic aperture.

This thing was growing out faster and faster!

When will his undercover mission end already?!

The demon realm was divided and ruled by three kings. Demon King Saros was forced to go on an expedition with his sworn enemy, Ansel.

One day, he noticed Ansel sneaking away from everyone.

Saros decisively followed him, and was shocked to find that his sworn enemy, another demon king of the demon realm, took off a horn headband and fake bat wings. As Ansel cursed up and down, Saros watched as he skillfully removed a cute halo from his head.

This irritable, easily angered guy who loves fighting; the type that was cute when he shuts up but could make even demons angered to the point of ascending to heaven the moment he opens his mouth…

..was actually an angel???

- Description from Novelupdates

Rowan Mercer was never meant to exist. Born in a covert mutant lab as Subject 757, he was engineered from the genes of Professor X and Magneto, then dismissed as a failure before he ever learned what he was capable of. His telepathy is faint, his magnetism weak, and the scientists who built him see him as little more than a disposable prototype.But Rowan is not alone in his own skin.The night he tries to sleep off another brutal training session, something in him fractures. His consciousness splits open, anchoring him to a second body in a different world entirely—an abused orphan in the shadows of Knockturn Alley, just days away from entering the wizarding world.Two bodies. Two lives. One mind.And then Rowan discovers the real impossibility:Every ability he trains in one world strengthens him in the other.Magic fuels mutation. Mutation fuels magic. And each new universe waiting beyond these two is another life ready to awaken.With X-23 preparing to lead a desperate escape, the wizarding world whispering of ancient power, and the multiverse itself unfolding like a map only he can read, Rowan begins to understand the truth:He isn’t a failed experiment.He is the blueprint for something the multiverse has never seen.A survivor.A weapon.A convergence.And the worlds that created him have no idea what he’s about to become.

A scientific genius named Thomas Harrier was transmigrated to an imperial prince body after a car accident that took his life. He found out that he is in a world similar to our own with a timeline akin to early twentieth century. The body that he is occupying was the imperial prince of a failing empire who suddenly rose to power after a successful assassination attempt of his father. Unaware that the attack is just the beginning of what is to come. He faces many challenges throughout. Will Thomas Harrier be able to live his second life in peace while running an empire and getting it back to its former glory? Or will he succumb into a conspiracy lurking within the country's borders?

Expect some:

Cold war era techs.

Super battleship with advanced electronics, propulsion, and fire control systems?
Helicopters?
Missiles?
Modern medicines and equipment?
AC-130?
A nuke?
Challenger or Abrams or Leopard?
F-4 Phantom or MIG-21?
Colored TV's.

Everything!!!

PS. Cover not mine, I just found it on google.

[WARNING][Mature content, erotic descriptions by a slightly perverted MC][All characters depicted are above the age of 18]**********My world ended in chaos, and I died trying to save it.I was Drey Belford, the most powerful mage in the world, but even I couldn't stop the evil villainess from destroying it.Now… I’ve woken up. Fifteen years in the past. And somehow, I’m not me anymore. I’ve been reincarnated as Rin Stormborn, son of a high noble...Best friend to the girl who destroyed everything.Armed with all my memories from my previous life, I’ve been given one last chance to change the future. All I have to do is survive magic school, navigate through dangerous noble politics, and keep my best friend from starting a world-ending apocalypse.Seems pretty easy. What could possibly go wrong?