Episode 6 reveals the double life of Miiko aka Baba Shizue, a 31-year-old underground idol and yakitori worker who poses as the eternally youthful "forever seventeen" Miiko. She defaces Yoru’s mural with her posters while singing a cover of Kano’s song, a mix of rivalry and homage. Desperate for a career breakthrough, she turns to JELEE, hoping he’ll commission a song that could finally make her famous.

At home, Miiko is adored by her daughter Ariel, who sees her not just as an idol but also as a hero who helped her gain confidence and friends at school. This heartwarming bond stands in stark contrast to Kano’s strained relationship with her mother, which only worsened after they became business partners.

The episode also shows Ariel, inspired by Mei’s uplifting speech about idol fandom, bravely wearing her idol costume in public and standing up to some bullies, earning her mother’s proud gaze.

Meanwhile, JELEE, posing as a cover band, holds their first live performance. Kano shines with her professional aura, while Yoru impressively plays the triangle, showcasing the group’s potential.

In a bold move, Miiko drops her youthful facade during a performance and reveals her true identity as a divorced, single mother. Her candid confession wins over her fans, and her video quickly goes viral, paralleling JELEE’s own rise as they approach 1 million views on their Aquarium video and the 100,000-follower milestone.