Tsubasa Fujiyama is the daughter of Mr. Fujiyama, an elderly man attending the "Yodamari" care center, known for his haiku expertise. Her father experiences hearing difficulties leading to loud speech and struggles with forgetfulness. He persistently carries an empty record jacket, symbolizing his ongoing search for a specific, deeply significant record.

This record, titled "YAMAZAKURA," preserves vocal recordings by Tsubasa's late mother, Akiko Fujiyama. It holds her last preserved voice, making it a crucial family artifact. Mr. Fujiyama's unsuccessful search for the physical record drives a significant subplot, fueled by his yearning to hear his wife's voice before his memories fade further.

Tsubasa's background is shaped by her parents' legacy, with her mother's musical contribution on "YAMAZAKURA" forming a central narrative element highlighting the family's artistic heritage. The record's discovery and playback during a summer festival provide a cathartic moment for Mr. Fujiyama, reconnecting him with his past and his wife's memory. This closure underscores Tsubasa's role as a custodian of her family's history, though she remains absent from the events.

The resolution emphasizes Tsubasa's connection to her parents' story, particularly in preserving the cultural and emotional value of "YAMAZAKURA." Her existence motivates the narrative's exploration of memory, legacy, and familial bonds without direct involvement.