Maou na Ore to Fushihime no Yubiwa - Volume 4 Chapter 4 — Onsen!

He mocked the omegaverse. Now he’s living it—with a baby on the way.Souta Tachibana was just your average, overworked office drone—until his BL-obsessed coworker introduced him to a trashy omegaverse romance novel. Curious (and a little horrified), Souta read it for laughs. But then he died in an accident.Now, he wakes up in the body of Lucien d’Armoire, a minor noble in the empire of Aetheria. No plot relevance. No destined lovers. Just a quiet, boring life as a background beta.Until one morning, he throws up into a chamber pot… and his doctor says something unthinkable:“Baron d’Armoire, you’re pregnant.”Which is impossible.Because he's male.And straight!And because Betas can’t get pregnant.…Right?Except Lucien is no Beta. He’s a rare male Omega. Apparently, during one reckless, drunken night, Lucien slept with an Alpha. Now he's pregnant, confused, and definitely not ready to be a father. To make matters worse—he doesn’t even know who the father is.

I once believed I was the heroine of a modern fairytale, blessed with beauty, wealth, intelligence, and a powerful legacy. Men adored me, women envied me, and I was engaged to the most desirable man, Cole Fay. My life seemed perfect, a dream where I held the starring role. But on my eighteenth birthday, that illusion crumbled. The truth hit me hard: I wasn’t the protagonist, nor even the villain or a side character. I was just cannon fodder, a disposable part of someone else’s story. But when fate recognized the cruel joke of my life, I was granted a second chance. This time, I’ll write my own story, living for myself. And this time . . . I will never love you again.

This novel is also known as The World Is A Wasteland: I Obtained A Top Tier Shelter

The meteorite destroyed the world, and the global people traveled to the wasteland world!

The monstrous flood, the ice age, the advent of alien beasts, the plant plague…

Under the random disaster once every seven days, if you want to survive, you must build a higher-level shelter!

Lin Yue awakened the 100% treasure chest system, and since then he has opened up a completely different style of painting from others.

Others: “The explosion rate of the treasure chest is too low? I still haven’t killed fifty mutant creatures!”

Lin Yue: “There are too many boxes and there is no room in the inventory. Do I have to upgrade the shelter to build a warehouse? Oh, it’s so annoying.”

- Description from novelbuddy

As the other person’s stand-in, he humbly falls in love with the president.

Xue Yingshuang was a stand-in, and humbly fell in love with Xing Yun…’s salary pay.

As the other person’s stand-in, Xue Yingshuang wishes he could never be separated from the president for the rest of his life.

He is a stand-in, and he must get off work at one o’clock.

The president’s white moonlight came back, other stand-ins were sad, and depressed. They couldn’t handle the jealousy and finally left with a dead heart.

Xing Yun’s white moonlight came back, and Xue Yingshuang had no waves. He enthusiastically served white moonlight and shone brightly at work.

Xing Yun: Little stand-in, is this your little trick to seduce me?

Xue Yingshuang: Misunderstood.

Xing Yun: Do you want to suffer in silence and finally leave secretly, driving me crazy?

Xue Yingshuang: You think too much, how can I leave? I still have half a year of social security before I can receive unemployment insurance.

Xing Yun: ?

Xue Yingshuang: I also haven’t received the year-end bonus you sent me yet.

Xing Yun: ??

Xue Yingshuang: I didn’t get my paid annual leave either.

Xing Yun: ???

Xue Yingshuang: Wait until I get the money and put it towards a vacation.

- Description from Novelupdates