Baka to Test to Shoukanjuu‎ - Volume 11, The Sixth Question

What would you do if you were told you only had five years to live?Aster Mistral, suffering from an incurable congenital “disease” that saps life force out of his every breath, decided to fight with all his might. Waking up into the future, 2,500 years later, he embarks on a quest to find a cure for his ailment!“My target! To find the Panacea on the 1,000th floor of the dungeon!”Together with trustworthy allies, he forges a path of blood and corpses, building his foundation and increasing his level! However, he can’t stay in dungeons all the time, as he has a duty to fulfill.“To raise the human DNA average of the world, the government wants my seeds?!”Follow Aster on his laidback journey of fighting monsters, courting girls, escaping adversaries, and discovering secrets about himself!

In a world where 99.9% of all men were wiped out and future births only had a 0.1% chance of being male, the role of men in society became that of celebrities graciously donating their seed to the masses. With the world population declining, pregnancy has become a social status, affording women government assistance, health insurance, and citizenship should they find a man to bless them with seed. With an only 1 in a 1000 chance of finding a guy, many women will do anything it takes to get close to a man and become pregnant. And should those women bear a male, it’s like winning the lottery, the remainder of their lives set as they receive massive stipends and no responsibility but to nurture their sons. Clyburn was reincarnated into such a world. Can a former unsuccessful business man properly navigate a female-centric world full of woman who just want to use him for his seed? With an overprotective mother, two caring sisters, and the mind of an adult, he might just.

After 140 years that gates and dungeons appeared on Earth and a system allowed humans to use special abilities, Matthew an 18 years old who just got out of high school will seek adventure inside those perilous places. However, instead of being able to select his own class as he progress the levels, destiny has another plan for him.

Xia Zhijun got the title ‘study god’ after scoring first place in the whole city. He’s the model of a good student in a teacher’s eyes: good grades, good manners, and quiet. When he wasn’t smiling, his entire body emits a cold abstinence aura. The girls only have the guts to look from afar and not get close.
Later, it was rumored throughout the entire school that even the study god would fight and hit on girls. Whoever dared to provoke his girl, he would teach you how to be a person at every minute. The night of the graduation ceremony someone saw him blocking Gu Siyi in the corner. He didn’t stop kissing even when she cried. He bit her lips and said in a raspy voice, “I’m going crazy…”
During college finals, Gu Siyi almost bursted out crying, “I’m such a failure. I won’t be able to find a good job in the future…And if I can’t find a good job, I can’t provide for myself…”
Xia Zhijun played with her pink earlobe and remarked, “I’ll take care of you.”
After they graduated, Xia Zhijun created a research company and Gu Siyi became the boss’s wife.
The commercial rocket, “Star of Siyi” was successfully launched. So everyone knew that the new technology superstar, Xia Zhijun has a wife who he spoils a lot.

- Description from Novelupdates