Kiyoko Shimizu

Kiyoko Shimizu manages the Karasuno High volleyball team with a calm, no-nonsense efficiency that immediately sets the tone for the gym. Composed and quietly observant, she keeps score, handles equipment, and organizes the chaos of a scrappy boys' team without ever raising her voice, earning instant, slightly starstruck respect from the players around her.

The show could have made her a passive love interest, but the writing keeps her purpose strictly practical: she's there to make the team function, not to be fawned over, and her flat, unimpressed reactions to that fawning are some of the series' best comic timing. Nazuka's dry, level delivery makes her stillness feel like authority rather than absence.