Open a Street Stall and Sell Vigorously - Chapter 550 - coincidentally, our Yan family also has a company to inherit

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

This story is about the romance that blossomed between a beautiful princess and several courtiers, told through the various positions they experienced together.

Elena, who spent her entire life as a cold-blooded female knight to avenge her family, ended up dying without claiming her revenge. When she opened her eyes she found that she went back into the past. By day she was a lady in a dress, and at night she carried a sword to change history and prevent her family’s destruction.

In her previous life, Yvonne Taylor died with hatred. Her stepsister burned her face with sulfuric acid, and her father was brutally murdered by her stepmother. Even Zachary Leinster, her father's best friend and the man who loved her the most, died trying to save her.Yvonne is miraculously reborn and begins her revenge.When she comes back, she is no longer the playful girl everyone knew. In order to take revenge, she applies for a prestigious school, majors in business, caters for her stepmother, and even... marries Zachary Leinster, her father's business competitor and ten years her senior.