(G)I-DLE member Miyeon appeared in the music video for Forever Eve, the theme song of the Japanese Netflix series Glass Heart. The MV was released on August 21 and features Miyeon alongside Japanese actor Kotaro Daigo, highlighting her signature pure visuals and emotive expressions that capture the innocence of first love.

The music video was directed by Takeru Sato, known in Japan for starring in Marry Me, My Husband and as the lead in Glass Heart. The series follows young adults striving for success through music, quickly becoming a hit with local viewers and topping Netflix Japan's charts upon release.

Within the drama, the fictional band TENBLANK gained popularity, releasing an album that reached number one on Apple Music Japan's album chart.

(G)I-DLE is set to release their Japanese EP i-dle on October 3, followed by a local tour to connect with fans in Japan.