MTL - Black Clover: Runaway Asta - Chapter 15

Xue Ling is a nine tailed fox who has been cultivating for thousands of years but lost all his tails in a moment of capriciousness.

“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!”

After nine years of traveling with her parents, Long Shiyan’s family encountered a group of bandits. Although her parents died, Long Shiyan was able to escape from them with the help of a system. From it, she learned that she was stuck inside the world of a harem novel! In order to revive her parents, Long Shiyan must prevent the protagonist of the original novel, Long Aotian, from capturing wives and attaining a harem. Otherwise, the world would end!

But, after saving a future harem member from Long Aotian’s clutches, why did this girl obtain a more terrifying characteristic than blackening into a villainess…

- Description from Novelupdates

The protagonist wakes up to a superpower one day, out of the blue! But there’s no organization targeting the protagonist’s superpower! The prettiest girl in his grade doesn’t turn out to be a psychicer like the protagonist himself! No door opens to another world and he doesn’t get summoned! There is no secret history in the protagonist’s past! There is no reveal explaining the protagonist’s sudden attainment of his superpower! So normal! Such overwhelming normalcy! He graduates from school and gets a job without anything happening! He lives as a mediocre working adult! Having enough power to fight against all of humanity yet not seeing anything happen finally makes him snap! Fine, be that way! If this is the way it’s gonna be, then I’ll make it! I’ll make the secret supernatural organization myself! Welcome to my manmade extraordinariness!