This building can be identified by the tree in front that has a swing on it. Classrooms in the academy are large and have high-ceilings, based on a theory that larger classrooms lead to expansive education, expanding even into the blackboard itself. In front of the blackboard is a podium situated far from the students' desks and put in a position where the teacher can view everyone at once. The large windows in the classrooms can be used as exits in case of emergency.

Students are taught basic Genjutsu, Ninjutsu, Taijutsu, and how to control their Chakra, if they have the ability to do so. When they have graduated they are separated into squads of three Genin and a Jonin. At this point, they are tested once again, this time by their Jonin teacher, if they fail, they are sent back to the academy or are dropped from the program at the teacher's discretion

It is also the building where the genin will take Stage One of the Chuunin Exams.