A female teacher who doesn't try to fix the disordered public morals. A school teacher, and is the class adviser of the protagonist's class. She knows that the girls in the school have loose morals, but correcting it will not be in accordance to her teaching principles, so she lets them do as they wish. Her job causes her stress because of the disordered public morals, and to relieve it she also became proactive when it comes to sex. [Translated from Official Site]