Starring Jung In-sun along with members of fictitious band Luna: Lee Jun-young, Jang Dong-joo, Kim Jong-hyun, Kim Dong-hyun and Yoon Ji-sung, the series depicts a romance between a world star idol suffering from sleepwalking and a resident doctor who has to secretly treat it.

[1] The series premiered on SBS TV on November 7, 2021, and aired every Sunday, at 23:05 (KST) till January 24, 2022.

[3] This series follows the lead singer of a popular idol band Luna, Yoon Tae-in who suffers from sleepwalking.

On September 9, it was reported that Japan has signed a contract with Corpus Korea, a company specialising in overseas distribution of Hallyu content.

In Southeast Asia and Taiwan iQIYI International and in Hong Kong Now TV will air the series.