MTL - Shoujo Grand Summoning - ~ 1689 Machine Doll! ...

My brother* and I, from elementary school to university, had grown up together. We didn’t just get into the same degree, we’re also sharing the same dormitory room.

As Orson read the novel written by the girlfriend who had left him, he gently remarked on how terrible the story was. But then, noticing a foul smell coming from the kitchen, he went to investigate. He realized there was some kind of gas leak. Already furious about being dumped, Orson became even angrier at the state of his kitchen, and in his rage, he hit the light switch with a powerful punch. Naturally, the explosion that followed killed him instantly, and Orson passed into the afterlife.After spending some time in limbo, he found himself reincarnated in an unfamiliar world. However, he quickly realized he had been reborn inside the cliché-filled novel written by his ex-girlfriend. As if that wasn’t enough, he had ended up in the body of Neonidas, a useless duke who was also the fiancé of the story's villainess.____There may be a bit too much swearing and slang in the first chapters, but it gets less afterwards.There will be no yuri, bl or ntr in Neonidas(MC) harem

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

She is the wife completely ignored by him, yet also the woman he most cherishes. Ultimately, she forces her husband to divorce her by taking on the identity of a lover!She steals vital information and, carrying this man's premium seed, successfully makes her getaway!Six years later, father and son have their first online confrontation. The little bean successfully infiltrates the man's system and sighs at her, “Mom, this person is so dumb. Is he really my dad?”Mu Yiliang pats her son's head and says reassuringly, “He was so terribly fooled by me back then, which shows his IQ is very low. Luckily, you inherited mine!”Unbeknownst to them, the man on the other end of the computer has already listened to the conversation between mother and son. He sneers coldly, “Very low IQ? Mu Yiliang, let's see where you're going to run this time!”