The character known as the "Announcer" serves as a charismatic television volleyball commentator, celebrated for her insightful analysis and on-air presence. Initially framed as a distant media personality idolized by the protagonist, her identity is later unveiled as the protagonist’s biological mother, who chose to pursue her volleyball career over remaining with her family. The protagonist’s father harbors visible resentment, reacting sharply to any mention or broadcast featuring the Announcer, underscoring lingering familial fractures.

Before her commentary career, the Announcer achieved acclaim as a professional volleyball player, earning a spot on the Japanese national team. Post-retirement, she seamlessly transitioned into sports media, becoming a respected voice in volleyball coverage. The protagonist, unaware of their biological tie, admires her expertise, creating layered dramatic irony as audiences discover the truth long before the protagonist’s own reckoning.

Their relationship is confronted when the protagonist secures a place on the national team. The Announcer privately reveals their connection, candidly addressing her past choice to prioritize ambition over motherhood. This confession plunges the protagonist into turmoil, prompting a temporary retreat from the sport. Emotional healing begins through the steadfast support of a close friend and romantic partner, who reignites the protagonist’s passion for volleyball.

In subsequent narratives, the Announcer recedes into a peripheral role, observed primarily through her professional commentary during the protagonist’s matches. Her narrative arc remains confined to these moments, with no expanded exploration in additional media.