Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e - Volume 17, Chapter 6 Part 1

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

Accidentally, she got pregnant.

One scam package,That's all it took to drag the 17-year-old Cail into the world of the void....He thought he had ordered a limited-edition sneakers. But what came was a shady-looking package on his front gate. It smelled like rotten egg and sulfur. Inside the package was a strange box.It's filled with eccentric junk. They looked very intricate and mysterious. He thought, “I probably got someone else's package, a package from someone that was very interested in mysticism.”An old coin, a cracked compass, a ring with an ugly center stone, and some other weird looking trinkets.So he did what any broke student would do:He sold it. He figured someone might want them for cosplay or something. Well, except the gold-rimmed glasses that seemed to fit him very well.“Damn, I paid 7,000 nu for that sneaker; I better get something out from this scam package.”Then all hell broke loose. Strange people started approaching him.People brought that junk. Very strange people wearing suspicious get up trying to buy those stuff in the sketchiest manner possible.As he kept selling, he realized that the box was refilling, it seemed to have an endless supply of those strange stuff. Those people called it 'artifacts'.Then one day he woke up with a strange tattoo on his arm; inside the tattoo was an independent space containing the box. It is basically inseparable from him.“I didn't ask for any of this to happen. But now, strange people come to me with desperate offers. Money, memories, and even soul.”He's just trying to survive high school while earning some money!He had no idea what was going on, but apparently, this thing that he got? It's not just an artifact. It's a contract.As Cail navagates school life, part-time jobs, and otherworldly clients, he starts asking the real question:When did I become an artifact dealer?!By day, he is just an ordinary student, a NPC character.And by night? He is The Dealer. Selling ancient items and dealing with people that he probably shouldn't be talking to.“Since I'm already in this mess, might as well profit off of it.”

Knights of the Round Table, Dino Fighter, King of Fighters, Romance of the Three Kingdoms, Metal Slug, Street Fighter, Samurai Shodown, Journey to the West, countless arcade games, have made their debut in the form of special copies.And the adventurers who take risks in these games are destined to have every journey as a life-and-death contest, except…A white dagger and a white pistol are fused to a green pistol.A green pistol and a green pistol are fused to a blue revolver.A blue revolver and a blue BOSS exclusive equipment are fused to Terhune’s wife… Hey?!Looking at the upgraded new equipment in his hand, Qin Ming was a little dumbfounded.No! Director! This is different from what was agreed!