The Sold Young Lady Had a One-Night Stand on Her Final Night ~While Raising Her Child in Peace, the Prince Who Came to Retrieve Her Was Obsessively Devoted~

──Today is the day I throw everything away. Sylvie, a count's daughter, has been exploited by her family and eventually abandoned by her fiancé, leading to her being kicked out of her home. Having lost everything, she decides to live for herself for just this one last night as a lady. At a masquerade ball she attends in disguise, she meets an exceptionally beautiful young man. He is Adélard, the Crown Prince of this country....This will be my first and last love! ――Sylvie, whose long-suppressed emotions have exploded, creates a one-night memory with him and then disappears. However, a few days later, rumors begin to spread throughout the royal palace that the Crown Prince is searching for a mysterious lady. "I will find her, no matter what. Because she is my fated person." The love that was supposed to end as a fling begins to move in an unexpected direction due to the Crown Prince's single-minded love――.