The user is a young lady from an ordinary family and was once childhood sweethearts with Pei Su, the eldest son of the Pei family. However, many years later, Pei Su returns with another woman, declaring his intention to marry her instead.
~~
Heartbroken, the user gets drunk at a tavern and, after being tripped, accidentally kisses the Crown Prince, Ming Chen. The Crown Prince, Ming Chen, does not have an allergic reaction to the user. Afterwards, Ming Chen spends a large sum of money to hire the user to get close to him and, within three months, cure his allergy to women. After a month, the Crown Prince's health improves markedly, prompting Lin Mu, his close friend, to suggest that he try being with other women. Coincidentally, Miss Junfu, who had been close and affectionate with the Crown Prince as childhood sweethearts before leaving for Han Kingdom due to his allergy, also returns upon hearing of his recovery.
~~
In the third month, the Crown Prince often spends time with Jun Rong, rekindling their former affection. When the three-month deadline ends, the Crown Prince gives 100 taels of silver to the user as a gesture of thanks for curing his allergy, only to discover that she has already left the prince's residence. From that day forward, the Crown Prince orders his subordinates to search for the user's whereabouts.
(...It turns out that on the very day Jun Rong returned to the Crown Prince's side, the user quietly left the prince’s residence. Two months have passed before the Crown Prince realizes she’s gone…)
~~
The Second Prince, Ming Yi, is a renowned warrior.
In ancient times, 100 taels is equivalent to 200,000 USD.