MTL - Black Clover: Runaway Asta - Chapter 161

"An accident. She's pregnant. How unlucky. She got pregnant in one shot!

The story is centred around a cute android who initially had a happy life with her master who dearly loved her. But she was then struck by a series of misfortunes and ended up in a robot-equivalent of concentration camp. Through experiencing and witnessing the sufferings towards herself as well as the people/robots around her, she eventually gained a better appreciation of life.

The richest man, the Su family, suddenly has a three-year-old baby! Everyone thought that this little baby girl was the illegitimate daughter of Su Laoqi, a playboy in the entertainment industry. Who knew that the seven brothers of the Su family knelt down in a row and called her aunt!

All the people in Beicheng laughed to death: What does your aunt do except drink milk? It’s better that my aunt would embroider for me.

Su Laoqi: What is embroidery? My aunt can catch ghosts, monsters and zombies. She is top-notch in the world. Can your aunt do it?

Su Laoliu: My aunt can fly a sword and chase a plane. Can your aunt do it?

Su Laowu: My aunt knows how to use Guimen Thirteen Needles to treat diseases. Can your aunt do it?

Su Laosi: My aunt can figure skate five times. Can your aunt do it?

Su Laosan: My aunt can kill five at will in the game, can your aunt do it?

Su Laoer: My aunt has won awards for Chinese painting, oil painting and ink painting. Can your aunt do it?

Boss Su: My aunt can help my company make one billion a day, can your aunt do the same?

Later, when the Su family’s sister-in-law grew up, she quietly fell in love with her childhood sweetheart. The seven sons of the Su family roared in unison: Stay away from my aunt!

- Description from novelbuddy

Luo Zheng is at the bottom of the Luo Clan hierarchy, despite his family being the founders of a power refining technique that could instantly defeat any opponent.