Upper Rank Six 声线

A major antagonist from *Demon Slayer: Kimetsu no Yaiba*, Gyutaro is the true Upper Rank Six and Daki’s older brother. His voice should feel rough, low-pitched, and poisonous in tone, with a harsh, taunting cadence that carries spite, menace, and a volatile, resentful edge. ([demonslayer-anime.com](https://demonslayer-anime.com/eda/character/?id=14))