Яда Тока

She is a student in Korosensei's Class 3-E. She is the big sister of Class 3-E and one of the most enthusiastic students about learning the art of infiltration from Irina. She's been described as being adult-like and cool to the point that Kayano admits that she's attracted to her despite her large bust.

Yada does not like violence, which is why she commits herself to negotiation in order avoid fighting.