Sage Nakamura formed the band Kashi-sei to model visibility and  acceptance. He brought together Yamamoto Haru, Watanabe (Way) Wayuu, and  Suzuki Zen to change the face of J-pop.

The J-pop industry has  traumatized Way. Despite being an idol, he struggles with self-worth and  his hidden nonbinary identity. He joined Kashi-sei partly because he  owes an enormous debt to his brutal former manager, but the band also  allows Way to perform with his crush, the charismatic Suzuki Zen.

Zen  is fiercely protective, driven by his own past trauma in the music  industry to take care of his sister and deeply in love with Way. Zen is  all about discipline, studying BDSM to keep his own control while hoping  to make Way lose his. Way is the only person Zen wants to sing with for  the rest of his life, but every time Zen tells him how he feels, Way  thinks he's just being flirtatious.

As their undeniable  chemistry blossoms into a secret romance, they must confront demons from  their past—including manipulative managers and obsessive stalkers—and  decide if embracing their authentic selves is worth risking their  careers and the future of the band.