Depending on the day, time, and her mood, Yukari can be either a horrible tyrant or one of the sweetest, most touching teachers ever. Her behavior ranges from mercilessly teasing and hitting students with blunt objects to kind and gentle words and simple, encouraging notes on tests telling students she believes in them.

Yukari's driving skills are infamous, showing no concern for the rules of the road, her car is titled by the class as the "Yukarimobile".