Alien creatures from the moon have special powers. They have undergone a long evolution and reproduction, constantly adapted to the earth's environment, and quietly integrated into human society. They are called: the Moon Clan. Tong Xiaoman, a student of the acting department, has only three months left to live, but she accidentally spends a night with Ou Zeye. The arrival of Ou Zeye broke Tong Xiaoman's peaceful life. In the ridiculous cohabitation life, Tong Xiaoman developed a liking for Ou Zeye, but found that he was not a human, but a member of the Moon Clan. The Moon Clan is usually no different from ordinary people, but every full moon night they have to endure the "curse" and become a terrifying bloodthirsty demon. Ou Zeye almost hurt Tong Xiaoman, causing a huge emotional conflict. But in the end, Tong Xiaoman and Ou Zeye still firmly believe that true love is supreme. The two of them broke through the secular constraints and cleared the obstacles, and finally changed their fate against the will of heaven and became an ordinary couple in the world.