MTL - Supreme Martial Dao - Chapter 49 Small manual

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

After transmigrating, medical expert Gu Qingxue became a widow with three small babies waiting to be fed.

Armed with a Miracle Doctor System, she used the needles in her hands to snatch people from the god of hell, raised the craziest children possible, and abused the scum of all scums!

But, no one could have expected her to accidentally provoke a famous war god from the frontier region!

The man had looks, money, and status. He pulled her back to his place to become his regent consort.

Gu Qingxue told him frankly that she was already married and had children, so it was a no! But then…

Who can tell her why all her children looked like him?!

Her second baby, Xiao Daimao, faced his father and said to everyone, “My mommy is very knowledgeable, so why would we need a father?!” Her third baby, Xiao Mian’ao, would boast whenever he saw people, “My mommy has a beautiful, sweet voice. It’s enough that I have my mommy!”

Only her eldest child was mature, remaining calm and unaffected. Then, her fourth child shouted, “Brother! Dad is climbing the walls again!”

Her eldest child, who had been unruffled a moment ago, picked up a big stick and rushed out immediately.

He would guard his mother till the end!

“Lin Yi, I'm pregnant...”“Oh my God, triplets?”Lin Yi was immersed in boundless shock.“Ding! The Good Father System is officially activated!”“Newbie reward: A 400 square meter luxury villa in the city!”“Be nicer to your wife and children, and you'll have more chances to trigger rewards, oh!”Lin Yi was ecstatic.“Xue Mei, let's get married!”

I, Hyoudou Issei, am a 2nd Year High school student and my age is equal to the number of years I haven’t had a girlfriend. And, someone like me got a girlfriend! I’m sorry buddies, I will walk the path of becoming an adult before you guys! – That’s how it was supposed to be, but why did I get killed by my girlfriend!? I still haven’t done anything yet! Are there no Gods in this World!? And, the person who saved me is the most beautiful girl in my school, Rias Gremory-senpai. I learned the shocking truth from her who isn’t a God but a Devil. “You have reincarnated as a Devil! Work for me!” Lured by Senpai’s breasts and treats, my life as a reincarnated Devil began. So the “Academy×Love Comedy×Battle Fantasy” starts here with just aggressive and worldly desires!