He was the one who should inherit the throne, but because he was still young when the late emperor died, the throne fell to his elder brother.
He is a princess disguised as a woman, and his mother-in-law is the princess by marriage. In order to protect his integrity throughout his life, he asked him to disguise himself as a woman and hide in the deep palace.
The prince, who has been away at war for many years, fell in love with him, who was disguised as a woman. Is the relationship between them love, or is it a palace fight to protect themselves?