Nanami Kuon is a bassist and vocalist who first appears busking on the streets of Shibuya, where she catches the attention of Eiko Tsukimi. The two quickly form a deep bond over their shared love of music, and Eiko comes to call her Nanamin. Nanami is a highly skilled musician, proficient on both bass and vocals, and her talent earns recognition even from Eiko. Despite her easygoing and somewhat reserved demeanor in casual settings, Nanami carries a significant internal conflict. She is the lead singer and bassist of the popular idol-rock band AZALEA, a group she originally formed in high school with her friends Ichika and Futaba. In their early days, the band played earnest hard rock and struggled financially, barely filling small venues and often covering expenses out of their own pockets. Faced with mounting debt and fading hope, the trio reluctantly accepted the guidance of producer Toshihiko Karasawa, who remade them into a manufactured idol act. Under Karasawa's tight control, AZALEA wears revealing costumes, performs polished pop music, and relies heavily on pre-recorded tracks and choreographed routines rather than live instrumentation. Nanami's genuine passion for raw, heartfelt rock music is suppressed in favor of a commercial image that generates mass popularity but leaves her feeling hollow and inauthentic. Her motivations are torn between loyalty to her bandmates, who depend on the group's success, and her own longing to make music that is true to herself. This internal struggle defines her role in the story as a thematic foil to Eiko: where Eiko represents artistic purity and the courage to follow one's dreams with integrity, Nanami embodies the compromises and loss of identity that can accompany commercial achievement. Their friendship becomes complicated when Kongming's strategic campaign for Eiko, known as the Hundred Thousand Likes project, pits the two singers against each other as direct rivals for a spot at the Summer Sonia festival. Nanami initially hides her identity as a member of AZALEA from Eiko, partly out of shame and partly because their time busking together is the only space where she can be her authentic musical self. When the truth inevitably surfaces, the confrontation forces both characters to reexamine their values. Over the course of the story, Nanami undergoes significant development. With the indirect intervention of Kongming, who sees through her facade and understands her true desires, Nanami is pushed to make a choice. During the climactic showdown of the Hundred Thousand Likes campaign, she removes her mask on stage, abandons the pretense, and performs live with her band using their own instruments and original sound. Although AZALEA loses the competition, Nanami wins back her artistic soul and repairs her friendship with Eiko. She ultimately breaks free from Karasawa's control, and AZALEA re-forms as a new incarnation that prioritizes their authentic musical identity over manufactured trends. Notable abilities include her expert-level bass guitar technique, her strong and emotive singing voice, and her capacity for reading and bonding with others through music. She also demonstrates resilience and a protective instinct toward her bandmates, often sacrificing her own happiness to shield them from hardship. Her most important relationships are with Eiko, who serves as both her closest friend and her catalyst for change; with Karasawa, who represents the oppressive system she must overcome; and with her bandmates Ichika and Futaba, whose wellbeing remains a core motivation throughout her arc. In the context of the movie, Nanami's journey is one of reclaiming personal and artistic freedom, and she emerges as a character who learns that true success is measured by faithfulness to one's own voice rather than by numbers or fame.