Noh In-ji, an employee at NM (New Marriage), finds herself deeply alone despite living with a contract husband every year.

Their lives are turned upside down when a mysterious trunk discovered in a lake sends them into a whirlwind of events involving the matchmaking service.

According to multiple broadcasting officials in February 2023, Gong Yoo and Seo Hyun-jin, who are both under Management Soop, were cast and positively considering to star in the series which is based on the novel of the same name by Kim Ryeo-ryeong and produced by GTist.

Kim Kyu-tae, who directed It's Okay, That's Love (2014), Moon Lovers: Scarlet Heart Ryeo (2016), Live (2018), and Our Blues (2022), and Park Eun-young, who wrote Hwarang: The Poet Warrior Youth (2016), collaborated for the series.

[14] Ten Asia reported that the filming lasted for about six months beginning at the end of August 2023 and wrapping up in February 2024.