Apocalypse: Building And Hoarding My Way Through. - Chapter 4: First Trial.

A normal guy gets hit by a truck and isekai'd. Why? Because trucks are apparently some cosmic loophole. He decides to be a dungeon, because it sounds weird and interesting to be one. Is it? Let's find out.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

In his old world, Elric had nothing—no powerful family, no elite degree, just relentless hard work and a passion for healing. Dismissed as a third-rate doctor, he shocked the nation by saving a congressman’s life and becoming an overnight celebrity. But just when his career was rising, tragedy struck.Now, Elric opens his eyes in a world unlike any he’s ever known—a land of swords, sorcery, and strange beliefs. Reborn in the countryside of a magical kingdom, where even a common cold is blamed on spirits, he’s the only one who understands how the human body truly works.With no palace, no power, and no one to trust, Elric sets up a humble clinic in a rural village. Armed with science and sarcasm, he treats the sick, challenges ancient traditions, and slowly earns the awe and fear of a world ruled by magic.Mocked as a fraud. Hunted by rival healers. Feared by nobles and mages alike.But this world is about to learn—Even a third-rate doctor can change history.

“Why did you have to get married to me then if you knew you were going to throw me away!” She yelled.He exhaled gently and faced her, his face blank, his eyes surprisingly cool.“That's because, I had to save my crown and my throne. Now, let me live my life.”“Why did it have to be me?” She palmed her face.“You know she's my fated mate and there's nothing I can do about it.”With tears in her eyes, she slowly picked up herself and nodded.“I'll sign the divorce papers.”•••Nyx is torn with grief, when Alpha Oberon, her husband decides to divorce her after he claims to have found his fated mate.She leaves the pack out of the fear of returning back to her abusive and cruel parents and raises her child all by herself.Years race by, with the new Luna not being able to produce any heir for the kingdom. A seer tells the king that he has a heir who has the king's blood running in his veins.What happens when he realises the child is from the very woman who once offended? What will he to do convince her to come back in order to save his throne and kingdom?