World Isekai - Chapter 13: [Bad Omen]

Shiao Yi is an 18 years old boy from a war-torn future, he is badly injured while escaping his enemies and wakes up in a strange, old-fashioned world with no technology—only magic, swords, and monsters.He’s saved by a kind but mysterious knight named Dominic and taken to a stone fortress where people think he’s just a lost child.As he heals and tries to hide who he really is, Shiao Yi slowly realizes he may have ended up in another world.With no idea how he got there or if he can ever return, he must learn to survive, understand magic, and figure out if this strange new place could be his chance to live a real life—for the first time ever.

Everyone believes Lin Zhao Xi’s a genius.

Only she knows she’s looking back on years of experience in math competitions as a basis to “cheat”.

Until one day, her idol quietly looks at her.

* * *

Time and space overlap, returning thrice.

— The past can change you.

- Description from Novelupdates

In a society where marriage has lost its true essence and has been distorted, reducing it to a transaction devoid of love and commitment, a mere agreement for personal benefits.Silvia Reyes found herself caught up in the chaos as she was about to be forced by her parents into marrying a man she despises.She was able to bail herself out of her dilemma as she offered a marriage of convenience to Davian Randell, who in turn needed it too to solve his dire situation.But life rarely goes as planned, does it? Will they find a way to reclaim love and commitment in their own lives, or will they succumb to the societal pressures that have tarnished the institution of marriage?Excerpt:-“If you think I'm gonna marry that man, then sorry, I'm not!” She said to her father.“You are, Silvia.” Her father declared.“I have a man!” She said.“What?” Her parents chorused.“You have a man. You should have told us earlier instead of letting us go through all that trouble.” Alan said.“We've been dating for some while now and he proposed to me recently and I accepted it.” She showed them an engagement ring on her finger, which she bought before coming to the mansion.“It's beautiful. How come you weren't wearing it yesterday?” Her mother asked.“I didn't wear it yesterday.” She answered simply.“Then why did you go through the trouble of attending the dinner date?, you could have just told us,” Her mother added.“I wanted to see the man you were setting me up with. I was so angry because I knew I was taken already. I didn't want to tell you guys yet, I didn't want to introduce him to you guys till a couple of days time. You spoilt the surprise.” Silvia explained.“Oh I see. So when can we meet this lucky man?, do we know him?” Alan said.“Uh-Uhm...no you don't. You'll meet him in a couple of days time, he's a really busy man.” She almost stuttered.“Okay, dear. We'll be waiting.” Her mother said. What has she done?, how was she going to get a man that will be willing to marry her in just a couple of days time.

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.