Himura Ishida

is an Echt Quincy, the Head Arithmetic Instructor at Rider High School, as well as the Head of Class B-3, and the grandfather of Sakaki Ishida.

Appearance
Himura is an elderly, bespectacled man, with aged white, shoulder-length hair, and brown eyes. He is easily one of the tallest characters introduced, towering over most others. He wears, almost at all times, a black tuxedo, black tie, black slacks, and black dress shoes.

Personality
Several students have noted Himura to be a weird and eccentric old man, due to his teaching style; though he is also noted by Geoffrey Oscar to be quite likable. Himura seems to be respectful to his students, and cares, to an extent, for his grandson, Sakaki. According to Geoffrey, though Himura now lives in America, he has still not gotten over calling his peers and students by Japanese honorifics, which annoys some and amuses others.

History
According to Geoffrey, like his grandson, Himura formerly lived in in Japan and moved to Rider City at an unknown point in time.

Trivia

 * Himura takes his name from, the protagonist of Rurouni Kenshin.