Steel, Guns, and the Industrial Party in Another World - Chapter 25: The Battle for the Royal Capital’s Recovery 3

As his contract-marriage wife, she just wanted to fulfill the mission given by his mother—having a baby. They didn't love each other, so he always used contraception before they got laid. She had been obedient to him, only to find that he had gone too far! He actually didn't care about their child at all! She couldn't stand it anymore, so she handed him the divorce papers and left, noting: “The world is so huge that I can surely find a better man.”Looking down at her, he retorted, “Come on, your purse strings will tighten up first before you find anyone.”

Born and raised in a remote village, Sheila entered the Royal Academy dressed as a man to become the knight of her dreams. However, what awaited her there were only characteristic and beautiful aristocrats. She was able to overcome the prejudice and harassment against commoners, and her natural thickheadedness and good-natured attitude allowed her to gradually gain a place in the school.“What? Only nobles have magical powers? But everyone in our village could use spirit magic.”If the spirit arts that shook the country to its very foundations and her gender were discovered, she’ll be instantly kicked out! Sheila’s tightrope-walking dormitory life began!

Su Wan is a Realm Destroyer. She shuttles to different time-spaces using the identity of the “Cannon Fodder Ex-Girlfriend”, dedicated to plotting how to happily tear apart the male protagonist and the female protagonist. –There’s no such thing as protagonists who can’t be torn apart, only Ex-Girlfriends who don’t work hard enough~

- Description from Novelupdates

Reborn and returning, he possesses medical skills, can practice immortality, has a slave who is the king of killers, and a maid who is the school beauty pursued by everyone. Even casually taking out a piece of trash can shock the world. His return has set this world ablaze.