In This Life, The Greatest Star In The Universe - Chapter 18:

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy

In the waves of steam and machinery, who could achieve extraordinary? In the fogs of history and darkness, who was whispering? I woke up from the realm of mysteries and opened my eyes to the world.

Firearms, cannons, battleships, airships, and difference machines. Potions, divination, curses, hanged-man, and sealed artifacts… The lights shone brightly, yet the secrets of the world were never far away. This was a legend of the “Fool”.

- Description from novelupdates

Ye Beibei was unprepared for a while, and she married Young Master Gu who was sitting in a wheelchair.

I thought that from then on, I would have lived a career as a wealthy man, rich and free, but I never knew I was enslaved every day to become a nanny.

Ye Beibei beat the table: Liar, I want a divorce!

Young Master Gu pushed a cute baby to his front: You still want to get a divorce even when we already have a child? Wife, you wake up!

“…” Ye Beibei looked at a cute baby, who was exactly like her, with a confused expression.

Who can tell her when she gave birth! ?

- Description from MTL

There are always four kinds of people in the traditional Mary Sue world. The Male Lead, the Mary Sue female lead, the woman who never wanted to see the female protagonist live a good life, and the infatuated man willing to destroy heaven and earth to get the female lead.