Hester Moss works as an assistant to the princess of the island nation of Triscari, who is studying at the university. The princess's brother, Prince Alec, is awaiting coronation, but according to the laws of the state, he can only be crowned if he marries. And he doesn’t have the slightest desire to get married... Bursting into his sister’s apartment, Alec meets Hester, and he suddenly has a plan - to enter into a fictitious marriage with this “gray mouse”. He will be able to be crowned, and Hester will get a divorce in a year and become rich. But... The "gray mouse", dressed in beautiful clothes and with makeup, turns out to be not just a beauty - a goddess with whom the prince falls in love and does not want to let her go, not in a year, ever...