The series was written by Jung Hae-sim, directed by Moon Hyun-sung, and starring Lee Se-young and Kentaro Sakaguchi.

She then discovers that his novel is based on the story of their relationship, where he was dismissive of her when she was in Korea, leaving her alone while he busied himself working, which drove her to escape him.

Director Moon Sung-hyun, who directed the films The King's Case Note (2017) and Seoul Vibe (2022), took the megaphone for his small screen directorial debut.

[4][5] Lee Se-young and Kentaro Sakaguchi were reportedly cast to play the main characters of the series in July 2023 and officially confirmed in December 2023.

[3][4] Hong Jong-hyun was reportedly cast to play as one of the lead characters for the series in January 2024 and officially confirmed in March 2024.