Episode 6 of "Glass Heart" kicks off with a dramatic scene in the hospital, focusing on Toya. When Toya fails to appear, Tenblank is summoned to take the stage amidst growing anticipation. News of Toya's stabbing spreads like wildfire, igniting a frenzy among his fans. In response, Akane seizes the moment, beating the drums with fervor, joined by Sho and Kazushi, who seamlessly integrate their talents. This allows Naoki to depart, concerned for his half-brother's wellbeing.
A nostalgic flashback transports us to a time when Toya's mother, frustrated by his imperfect piano playing, harshly compared him to Naoki. Her abrupt departure leaves Toya heartsick. In the hospital's serene environment, Toya awakens to find Naoki by his side, inquiring about the condition of his fingers. A poignant moment reveals that as children, Naoki never inquired about Toya's struggles. Naoki confesses that, while music encapsulates his very essence, he lacks Toya's unyielding determination to champion his craft.
Another memory flickers, revealing Toya's relentless practice despite bandaged fingers. The sibling bond, though fractured, hints at a shared history. Naoki expresses gratitude for the warmth embraced by Toya and his mother, despite his status as an outsider. Toya, resolute, urges Naoki to assist him in fulfilling a promise made to a concertgoer, pushing for their departure to the venue.
A striking revelation unfolds in a flashback: it wasn't the young fan who attacked Toya but a hooded figure aiming for a regular concert-goer. Toya, recognizing her, interposed himself, vowing to serenade her despite the peril.
The narrative pivots to a poignant live stream from the hospital, where Toya, for the first time, affectionately dubs Naoki his "older brother." United by their passion, Overchrome and Tenblank join the stream, creating a symphony that captivates everyone. The online audience adores the impromptu performance.
Post-concert, Akane visits, prompting Toya to inquire about her journey in discovering her unique sound. Her eyes sparkle with joy as she affirms her love for the creative pursuit. As Toya and Mahiro return to his hospital room, their conversation drifts to the essence of happiness. Mahiro confides that his joy will be complete when Toya guides them to the pinnacle of success. A poignant memory revisits their studio days, where Toya solemnly vowed to lead them to greatness.
Back at the hospital, a doctor's eyes lit up with recognition as she spotted Naoki and made her way over to him. To his surprise, she was the very physician who had attended to him after that fateful lightning strike. With concern etched across her face, she warned him that his body might not withstand the rigors of continuous concert performances. When Naoki steadfastly refused to halt his musical endeavors, she posed a poignant question, challenging him to contemplate the loss of music through the ultimate price of his life.
Elsewhere, the members of Tenblank gathered for a jubilant toast, celebrating the success of their concert with refreshing beverages. Their evening crescendoed into a lively game of Frisbee, laughter resonating through the air. As the fun came to a close, Naoki, with a gleam in his eye, announced to his exhilarated bandmates that they were officially embarking on a tour—a new chapter in their musical journey unfolding before them.
