MTL - Game Invasion: I Chose the Weakest Professional Summoner - Chapter 248 Conjectures about the companion space

The worst student of Westroad Academy. The disgrace of the Blake House. A new soul enters the body of Frey Blake, who couldn’t overcome his miserable life and chose death instead. “What’s with this body? I’ll have to work on tuning it from scratch.” The Great Mage Lucas Traumen, with the body of Frey Blake, gains a chance at revenge!

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.

Large-breasted, horny alien Empresses rule the galaxy. Julian doesn’t mind.He’ll go through every last one of them, fucking, conquering, if that’s what it takes to burn it all down.The Imperium of Archos invaded his planet.They razed it to ash.They killed the only girl he ever loved and then......left him to die.But then he found the Exion System, an ancient alien device built to make conquerors, not heroes.It bonded to his body and made him:THE GALACTIC KNIGHT.He’s not here to play hero. He’s here to burn the Imperium down.[Apocalypse System Activated]Host recognized: Galactic Knight.Command Authority: Unlocked.[Initiating Galactic Path.]Julian rises.He becomes a planetary governor.Then a warlord.But he’s not stopping there.He commands mech armies, crushes resistance, and spreads his reach across galaxies.Alien warlords, monolithic ugly monsters and cosmic gods will stand in his way, but they won’t stop him, he'll tear them to pieces!Planets of rivals will fall. Empresses will moan.And somewhere at the end of this blood-soaked path, the monsters who ruined his life will scream louder than anyone.They wanted war.He’ll give them hell.And he’ll make sure they watch him become the apocalypse they awakened.[CAUTION!][STRONG SEXUAL CONTENT.][BRUTAL, INTENSE AND BLOODY BATTLES]

I am the master of a certain dark guild.

Including me, there are only 10 other consistent members in this guild. However, all of them are like daughters to me… is what I think.

Since this is a dark guild, we act without standing out too much. However, it seems like everyone has been acting a bit too weird recently.

They’re acting really weird… eh? What? [Presenting me the whole world]?