as Crown Prince Lee Yeong: A charismatic and witty prince who grows into a wise monarch.

Driven by debt to loan sharks, Ra-on is forced to enter the palace as a eunuch. There, she becomes a close aide to Lee Yeong, who eventually falls in love with her despite her secret identity. The title itself is symbolic: the "clouds" represent the people, while the "moonlight" represents the monarch. Main Cast and Characters

The drama was a massive commercial hit, peaking at a in South Korea. Its immense popularity led the press to coin the term "Moonlight Syndrome" to describe the craze surrounding the show. Key highlights and accolades include:

as Hong Ra-on: An intelligent street performer disguised as a eunuch who harbors deep secrets about her past.

(also known as Love in the Moonlight ) is a popular 2016 South Korean historical romance drama set in the 19th-century Joseon Dynasty. It is based on the web novel of the same name by Yoon Yi-soo and follows the coming-of-age journey of Crown Prince Lee Yeong and his unconventional relationship with a young woman disguised as a palace eunuch. Story Overview

as Kim Byung-yeon: A skilled swordsman and the Crown Prince's loyal childhood friend.

as Jo Ha-yeon: An ambitious noblewoman betrothed to the Crown Prince. Critical Success and "Moonlight Syndrome"