Akazame

Akazame is a teacher at Tokiwadai Middle School.

Etymology
Akazame means "red" (赤) (aka) and "shark" (鮫) (same/zame).

Toaru Kagaku no Railgun (light novel)
During the entrance exams in School Garden, Akazame was acting as a guide. She called for Yugure Tsumebakei after she had reported her sister's disappearance, and later allowed her to take a break after her interview, given the circumstances.

After School Garden became airborne and isolated due to Resanerié Sadis Dialine's plot, she was lined up for execution by students incited and agitated by Resanerié, but was saved by Mikoto's intervention.