Both a prestigious and competitive high school. Mato Azabu high school, better known as "Azabu" by many, is a private preparatory day school located within the Azabu District. It is a high school that focuses on teaching those of grade levels seven through twelve. Consisting of two institutions, which are Azabu Junior and Senior High Schools, it is known to be a school that is both very liberal and magnanimous. Axabu is a very competitive high school that also happens to be very active within exchange programs for those of Canada, the United Kingdom, and even those of Ningbo Polytechnic in People's Republic of China. The Azabu district is mostly a residential area, and the main gate of the school is so narrow that one may not notice that there is a large school there. This fact produced the famous phrase "Azabu’s narrow gates," which also implies its extremely competitive admission policy. The classrooms are located in the main building, which is a square-shaped, 4-story building with a courtyard. The courtyard can also be used as two tennis courts. That building houses the school's library and some club rooms. The number of books in the library is over 40,000, which is a fairly large number for a high school library. The schoolyard has a 200-meter track (which is also a soccer field), four volleyball courts, two more tennis courts and a 25-meter pool.