The royal palace is embroiled in political infighting. King Young-jo slowly executes his own son, Crown Prince Sado (actor Lee Chang-hoon) by locking him up in a small rice chest for unknown reasons. San (actor Park Ji-bin, 後 actor Lee Seo-jin), Crown Prince Sado’s son, sneaks into Shimin Palace in the middle of the night to visit his father who is slowly dying from starvation.
Meanwhile, the young Song-yeon (actress Lee Han-na, 後 actress Han Ji-min) whose father was a former royal painter is brought to the palace through family connections where she becomes a young court lady. In the still of the night, Song- yeon is forced to go to the palace kitchen and bring back a snack for the older court girls but gets lost on her way there.
Dae-soo (actor Kwon Oh-min, 後 actor Lee Jong-soo) is one of the trainees who will become a palace official and eunuch but he tries to run away in the middle of the night because he doesn’t want to be castrated. San, Song-yeon, and Dae-soo wander the palace with different purposes and meet together by fate.
