[citation needed] On November 14, 2017, Yves was revealed as the ninth member of the Korean idol girl group Loona.

[5] The sub-unit includes members Chuu, Go Won and HyeJu, and their EP, Beauty & the Beat, was released on May 30, 2018 and reached number 4 on the Gaon Album Chart.

[10] On November 28, 2022, it was reported that Yves and all Loona members, except for HyunJin and ViVi, have filed a lawsuit to suspend their contracts with Blockberry Creative, citing a loss of trust in the company.

[11] On January 13, 2023, it was revealed that Yves, along with HaSeul, Go Won, Olivia Hye, and YeoJin, lost the trial against Blockberry Creative regarding the termination of their exclusive contracts.

[12] However, on June 16, The Seoul High Court's 5th Civil Cases Division ruled in favor of Yves, HaSeul, Go Won, Olivia Hye, and YeoJin, allowing them to suspend their exclusive contracts with Blockberry Creative.