According to her Korean label Star Camp 2020, "Jung Yoo Mi has signed with Japan's Dentsu Music at the end of September. It'll be a great opportunity to show various sides of her to the Japanese fans. It's also meaningful as she is the first Korean actress to sign with Dentsu Music'."
A rep from the Japanese label also shared a comment, saying, "We were impressed by her beauty and stable performance on dramas that aired in Japan, and that eventually led to the signing of this contract."
Dentsu Music and Entertainment is a Japanese entertainment agency that oversees all fields including music, acting, advertisement, and more.