From Corpse to Crown: Reborn as a Mortician in Another World - Chapter 30: At Last, the Bell Tolls

[However, due to mysterious anomalies during host's initial awakening trial, the Aetherfall protocol has been permanently altered.Host will be subject to mandatory sequential trials even after other hosts have been offered options to trials— ALL TRIALS FOR HOST WILL BE MANDATORY.Until Paragon Ascension has been exceeded.Failure to complete any trial will result in the utter and irreversible termination of spirit and vessel.In summary:Host will either survive or be terminated.]---The regular nobody, done in by Truck-kun after being... distracted,transmigrates into the body of a side character from his most hated novel—during the awakening trial.Somehow, he finds a way to survive... or so he thought.In a world where everything revolves around the MC, a side character destined to die can only bring bad omens.He's given a near-impossible task by the trial system of this world—along with no option to reject other than death.And in a novel where characters were once one-dimensional, they’re now being seen from every side and perspective—things are far more complicated than he ever imagined.A world where heroes are hidden psychopaths, villains are deeply misunderstood,teachers are unstable, and teenagers are... Let's just say hormonal.What could possibly go wrong?

Yu Mengruo transmigrated into a Zerg.
The good news is that he is a rare male with special privileges, and he also has the golden finger as standard for traversal.
The bad news is that the Zerg is a strong race, and the original owner just failed the promotion and was abandoned by the family. Within three days, within a very small range of options, he must choose a female partner with a worrying comprehensive score. The siege of marriage.
Yu Mengruo left his partner’s position to the desolate Bai Yueguang after a brief period of ignorance.
Bai Yueguang, who the original owner could not ask for, was a military female from humble background but self-improvement. Due to serious injuries that were difficult to cure, she could only be discharged from the army’s high position and became a defective product that was criticized by cold eyes.
When the once sharp sword was covered with dust, Yu Mengruo (thinking to himself) appeared as a radiant savior and stretched out his hand to the female worm in desperation.
Female worm: Is it to avenge my original rejection? 【Heart is like ashes.jpg】
Yu Mengruo: Nonsense, I am the reward for your hard work.
【Lightning Protection Guide】
Although the copywriting looks like a favorite, it’s just a wild cat master who has not been domesticated and decided to give the stupid shit shovel a chance to get close to his story. The author thinks that it is mutual favor and two-way healing, but maybe readers will think that it is favored? Anyway, it’s not attacking the favor, it’s not attacking the favor, it’s not attacking the favor, and the important things are said three times!

Content label: Farming text system sweet text cool text
Search keywords: Protagonist: Yu Mengruo ┃Supporting role: Sharka ┃Others: Zerg
Sentence introduction: Crossing the adult Zerg male.
Purpose: Dreams and hard work create success.

- Description from novelbuddy

Three years into Qin Yu's marriage, his wife and in-laws all hated him.

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates