For ten years, Seojun has harbored a silent, unrequited crush on his best friend, Jaeyun. But when Jaeyun asks for a favor, Seojun finds himself sharing a roof with his friend’s younger brother, Doyun. Living together reveals a different side of the family: while Doyun is quiet and unexpectedly tender, Jaeyun’s perfect facade begins to crumble. Caught between a decade of devotion and a new, grounding confession, Seojun must finally decide which brother holds the key to his heart.

Lee Hyun Ho, an ordinary man who was looking for a job in Korea, has been reincarnated into a prince from the Joseon dynasty. But unfortunately, he was reincarnated into Grand Prince Jinseong, the younger brother of the tyrant Yeonsangun! Although he graduated from a decent school, Hyun ho struggled to find a job. One day, he went to sleep after spending his day living the ordinary life of a poor Korean, and when he opened his eyes, he found himself as Grand Prince Jinseong from the 15th century. Since he was now a rich prince, his plan was to live the high life but… He finds out that his brother is Yeonsangun, the king of Joseon, infamous for being a crazy tyrant! And thus marks the start of the ordinary job seeker, Grand Prince Jinseong’s (Lee Hyun Ho) plan of making the tyrant Yeonsangun into a great king and to protect his own wife.