Margaretta was the only one in her family who was looked down upon as plain. Then, one day, her fiance, the crown prince, broke off their engagement and sentenced her to exile.

Having reached her limit of tolerance for the horrible treatment she had received, Margaretta abandoned her family and the crown prince and left the country without renewing the "contract" she had made with them 10 years earlier. With the contract gone, Margaretta regained her incredible abilities and was living happily as a pharmacist in a neighboring country. But then, her sister and the crown prince, who had supposedly exiled her, showed up to see her...!?

"Even if they ask me to lend them my powers again, I absolutely refuse!" The thrilling success story of a cheat-level pharmacist lady begins here! *The digital version has been edited based on the hardcover edition.