Dimensional Keeper: All My Skills Are at Level 100 - Chapter 1164: Frostfire Beasts

A decade ago, the first dungeon gates appeared, but some vanished before they were ever conquered. The MC, a low-rank hunter, awakens the Lost Gate System, granting him access to these forgotten dungeons where legendary monsters and artifacts are trapped. Each completed lost gate grants him absurd power, but also reveals terrifying truths—these dungeons are prisons for ancient beings who want 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.

Kota Sakamoto—virgin weeb, social reject, and hentai game addict—gets sucked into a perverted dungeon world straight out of Carnal Labyrinth EX, the 18+ erotic strategy game he secretly 100%-cleared.The catch?All eight of his hot classmates and their strict MILF teacher got dragged in with him.The other catch?They hate his guts.Worse still, this dungeon world is exactly like the game—every level a twisted, orgasm-fueled survival puzzle where failure means death by overstimulation, lust-monsters, or trap-triggered climaxes that literally drain your soul.He’s the only one who knows how to survive.They either listen to the virgin... or moan themselves to death.Bondage plants, lewd slime traps, fetish trials, and orgasm boss fights await—and the only way forward is obedience.What starts as reluctant cooperation turns into obsession, as each girl slowly falls for the boy they once mocked...…the virgin who’s now their dungeon master.

Being second best is practically in my DNA. My sister got the love, the attention, the spotlight. And now, even her damn fiancé.Technically, Rhys Granger was my fiancé now—billionaire, devastatingly hot, and a walking Wall Street wet dream. My parents shoved me into the engagement after Catherine disappeared, and honestly? I didn’t mind. I’d crushed on Rhys for years. This was my chance, right? My turn to be the chosen one?Wrong.One night, he slapped me. Over a mug. A stupid, chipped, ugly mug my sister gave him years ago. That’s when it hit me—he didn’t love me. He didn’t even see me. I was just a warm-bodied placeholder for the woman he actually wanted. And apparently, I wasn’t even worth as much as a glorified coffee cup.So I slapped him right back, dumped his ass, and prepared for disaster—my parents losing their minds, Rhys throwing a billionaire tantrum, his terrifying family plotting my untimely demise.Obviously, I needed alcohol. A lot of alcohol.Enter him.Tall, dangerous, unfairly hot. The kind of man who makes you want to sin just by existing. I’d met him only once before, and that night, he just happened to be at the same bar as my drunk, self-pitying self. So I did the only logical thing: I dragged him into a hotel room and ripped off his clothes.It was reckless. It was stupid. It was completely ill-advised.But it was also: Best. Sex. Of. My. Life.And, as it turned out, the best decision I’d ever made.Because my one-night stand isn’t just some random guy. He’s richer than Rhys, more powerful than my entire family, and definitely more dangerous than I should be playing with.And now, he’s not letting me go.