Sandayū Asama

Sandayū had short grey hair with a beard and moustache along with small black eyes. For the most part, he wore small glasses, and a baby blue long-sleeve shirt with a navy blue blazer on top. Later, Sandayū dons a samurai outfit on top of his casual wear, consisting of dark-green and red armour and a red sleeveless coat, tied at the stomach with a white sash. In this, he had a small light-blue talisman hanging from a wakizashi.

When he was young, he lived in the Kazahana Castle as a loyal subject of the daimyō, Sōsetsu Kazahana. When Dotō Kazahana revolted and burned down the castle, killing Sōsetsu in the process, Sandayū and Koyuki left the remnants of the place, and ever since then has become her personal assistant throughout her acting career.