Good Morning, Mister Dragon! (WN) - Chapter 2596

Seven years ago, Shen Qianshu is impregnated with Ye Ling’s child in an accident.
Seven years later, the little boy becomes famous and is thought of as the nation’s son.

When he suddenly sees Ye Ling appear, he greets, “Hello, Daddy?”
Ye Ling watches as the little prince roars, “Where’s my princess?”
Just as Shen Qianshu is preparing to run with her son, she gets pushed down by Ye Ling.

“You can leave if you want, but leave me a princess first. Let’s have another baby!”

- Description from Novelupdates

Ye Qingyu, since the death of his parents four years ago, has been laughed at by the entire Deer city. Little do people know, he has just been biding his time for the entire four years. With the White Deer academy selection just around the corner, can he shut the mouths of all those who have laughed at him? Join Ye Qingyu in his journey to solve the mystery behind his family’s death and to reclaim the Ye family property! It is fantastic!

I just want to be different, no one can guess what I want to do, the more mysterious the more powerful.

- Description from novelbuddy

She was originally the young miss of the Marquis Estate, but became a peasant girl due to a mixed-up at birth.