Eternal life begins with saving my clan - Chapter 272: Military Advancement - Spirit Battleship and Spirit Submarine.

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

- Description from Novelupdates

Being taken away of all his freedom, Noah was thrown into the jail accused of a murder he hadn't committed.

This incident broke his personality permanently, getting out of the jail Noah started living as a shut-in giving up at everything.

Noah read novels as a mean to pass his time, while reading novels an particular novel caught his eyes, it's name was 'the hero of velveric fights the demon lord'

'It's a harem novel......'

That was what Noah had thought in the beginning but, it all changed at the end of the novel.

'What the Hell's with this crazy novel!'

The protagonist and all his harem members were killed and in the end the demon Lord took over the world.

It was then, after finishing reading the novel, Noah started coughing out blood and succumbed to his lung disease.

Opening his eyes Noah found himself in a body of a 8 year old kid of the Melvix family which appeared in that crazy novel.

He was known as the garbage of the Melvix family by all the knights and family members but that didn't matter to Noah. What matter is that-

'It's impossible to survive in the novel if you are not strong enough......'

During the summer vacation, sixteen nieces came to Luo Feng’s house to play together, but they couldn’t go back when the city was closed.

He silently calculated that the 16 nieces had to eat 16 catties of rice, 8 catties of meat and 20 eggs a day.

Total other consumption, need 3000 yuan per day.

Just when he was trembling, Uncle Shenhao’s system descended!

Just pet your niece to get rewards!

Explode the street with my niece, reward: an extended version of Rolls Royce.

Take your niece to the supermarket, reward: 30 million supermarket coupons.

Take your niece to eat out, reward: 100% shares in Dihao Hotel.

Teach my niece to write, reward: a house in the school district.

Book a movie theater for my niece, reward: shares in Yida Company!

Hold a luxurious birthday party for your niece, reward: the design drawing of the world’s strongest aircraft carrier!

With this system, I take my 16 nieces everywhere to eat, drink and have fun every day.

Accidentally, he became the richest man in the world…

- Description from novelbuddy