Godzilla In Konoha - Chapter 2: Gene Mutation

The real world merged with the game world, monsters came to the world, and herds of beasts raged in the city.

In order to eliminate monsters in the dungeon, everyone who has player qualifications has to hunt monsters, choose a career, keep getting stronger, and protect human cities from being destroyed.

Elemental mage, fire and ice, destroy everything! In the priesthood shield battle, Mount Tai collapsed in front of him and remained unchanged.

However, Han Yu, who had high hopes, chose the summoner profession that even dogs would not choose.

“Summoner? Is there anyone for this profession? Don’t dogs even play?”

“Who will team up with a summoner, let him brush slowly by himself. The two summoned creatures are not enough for me to step on.”

“I heard that his talent is not bad, why can’t he think about it so much, and changed his job to a summoner.”

Until one day, Han Yu was drinking tea while standing behind Huyun Leopard, which was the size of a mountain, and the giant skeleton hand that emerged from the ground gently pinched the boss to death.

Only then did people discover that Han Yu’s summoned objects would not disappear, and could even be cultivated continuously!

- Description from novelbuddy

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.

The story is about a boy entering high school, who answers a strange call from a public phone one night. The caller challenges him to a bet: She’ll remove the birthmark which he sees as the cause of so many problems, and he’ll have fifty days to win the heart of a girl he’d considered far beyond his reach. And with this, a very strange summer begins.

I am Lin Fan and I’ve become a jack of all trades just because of a powerful Encyclopedia.
In the first ever competition organised for trolls, all the other contestants lost. The crowd exclaimed, “Brother, you’re so good at trolling.”
Lin Fan replied, “But I’ve never been trolling…”