Onna Hakushaku Amber ni wa Shousai ga aru! - Yatto Jiyuu ni Nareta no de, Saikon Nante Okotowari

"The Count's family is on the verge of bankruptcy because of my ex-husband, but I'll fix it!"

This is a painful reversal of fortune that begins with a fake engagement between the protagonist who is undaunted by adversity and a beautiful young man who is not so lucky!

Amber, the Countess's only daughter, is married to Brandon, a Marquess. Amber is following the terms of the marriage, which stipulates that Brandon is responsible for managing the Count's property, However, he had no talent for business, ate up the fortune, and even eloped with a lady-in-waiting. Amber secretly worked side jobs behind her ex-husband's back, and used her experience to started up a succession of businesses, including a clothing line, an esthetic salon, and a bar.

All of her businesses take off and she is happy, but then she discovers something that puts her in a difficult situation.
Then a beautiful young man, the enigmatic painter Christian, appears and makes a surprising proposal....?