The series tells story of romance between a 999-year-old nine-tailed fox named Shin Woo-Yeo and a female college student named Lee Dam who accidentally swallows Shin Woo-Yeo's bead.

It premiered on streaming platform iQIYI worldwide and cable channel TVN on May 26, 2021, and aired on Wednesdays and Thursdays at 22.40 (KST) for 16 episodes till July 15.

[1][2] The series ended on July 15, 2021, with its last episode recording an average nationwide viewership ratings of 4%.

[3] Gumiho, literally "nine-tailed fox", is a creature that appears in the folktales and legends of Korea.

[22] Lee Hye-ri and Jang Ki-yong both starred in Schoolgirl Detectives previously.