MTL - The Villain is Happy Being a Father - Chapter 139 School tyrants (1)

The eternal struggle between good and evil, Qin Shuang steps onto the path of cultivating, meeting various heroic individuals on her way to immortality, experiencing various events on her journey.

- Description from Novelupdates

Twenty-six years, Jiang Yun experienced three things:
girlfriend Qin Zhao cheated;
quit his job;
Another new love.

【You are the fireworks of the world and boundless obsession】

Demining:
1. Do it first and then love the text. Jiang Yun and Lu Nian didn’t care about it in the early stage (emphasis added), so why not talk about feelings, and Lu Nianzhi and Qin Zhao are friends. That is, Qin Zhao cheated, Jiang Yun found another new love (who had broken up), and Lu Nianzhi was digging.
2. The clean party is careful to enter, Jiang Yun has an ex-girlfriend.
3. The broken mirror does not reunite, and Lu Nianzhi’s he, abusive scum text.

Content tags: Encounter by fate Near water towers Heaven made synthetic growth
Search keywords: Protagonist: Jiang Yun, Lu Nianzhi ┃ Supporting role: Qin Zhao ┃ Others:
One-sentence introduction: abused scum, broken mirror will not be reunited
Purpose: Get out of frustration, keep improving, and become self-reliant

- Description from novelbuddy

She, the “godly doctor” of an assassin organization in 21st century, transmigrated into the body of Yun Family’s abandoned, good-for-nothing Ninth Miss. Good-for-nothing? Then she’ll let the world see what a real good-for-nothing looks like. Summoners are legendary? Nothing is impossible in this world! She’ll become the first Magical Summoner.

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.