I Refuse to Become Scumbag in Tokyo - Chapter 731: Misaki:

[You have entered the dungeon at Gwachun Station’s 1st Exit.] When former high school student Kang Woojin finds himself returned back to Earth after being forcibly summoned to a foreign planet for 20 years, he soon finds that Earth is not the same, normal place as he once remembered it to be.

She is a descendant of an Ancient Chinese Aristocratic family. Having just transmigrated into a young lady’s body filled with aphrodisiacs, she had no choice but to pounce at a random man upon arrival.

Unexpectedly, not only did she get caught red handed, she’s also pregnant with child before marriage.

In the end, the baby she carried for ten months turned out to be a little fox, and it could cry “Mama” once born? Fortunately for her, the child is well-behaved, kind, and caringly protective of his mother.

In this world filled with both evil and good, this pair of mother and son will work together to destroy all their adversaries. As for the scumbag relatives who scorned them, they will make them pay dearly with regret in mind.

But then one day, baby fox’s father suddenly showed up, not only to steal the child, but to steal her too? How can there be such a good thing? This foolish father of his, didn’t even ask for little fox’s opinion?

Stabbing his hands to his hip, a certain little fox demands: “You want to be my father? First pay up then go behind the line. Mother, I think next door’s Uncle Wang is quite rich, you can just become Uncle Wang’s daughter-in-law.”

- 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!