Chrysalis - Chapter 40 Assault on the surface

The ordinary world is not ordinary, ordinary people are not ordinary, and safe places are not safe.

This is a story of a passer-by male protagonist who is entangled by various girls with strange hobbies or even non-human beings while surviving in the cracks and opening a harem.

- Description from novelbuddy

“Your frog cub will bring you back the travel specialty [Wu Dun·Xueji Boundary]!”

“Your frog cub brought you a souvenir [Eternal Kaleidoscope Shaker Eye]!”

“Your frog cub brought you back the souvenir [Bamen Dunjia]!”

Traveling to the world of pirates, what Bai Ye didn’t expect was that a small game called “Traveling Frog” that he had played turned out to be his golden finger.

Also, the entire game has completely changed!

The place where the little frog travels has turned into various dimensional worlds!

And the original ordinary specialty has become a special product of each world!

Relying on the special products brought back by the little frog, Bai Ye can continue to become stronger even if he salts the fish every day.

Not only that, the friends the little frog has made in these worlds will come to visit from time to time.

“Ding dong! Frog cub’s little friend Hinata Hinata is visiting, let’s treat her with specialties~”

- Description from novelbuddy

The weak prince of an insignificant country, Davey. After becoming comatose, his soul escaped to a temple where the souls of heroes gathered.

He trained for a thousand years and has now returned as a max level hero!

“Just you guys wait, I’m gonna face you all head-on!”

The refreshing story of Davey’s royal life and revenge has just begun.

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.