The lunar calendar and the astronomy are also used to divide seasons in Japan, for your information. The point is that it begins to become hot in May at the earliest, and the heat stays till October in Japan. That is why, in general, 1st June is set as the date to change from winter uniforms to summer, and 1st October is to change the other way around.
That’s because they would like to get into the best possible high school. This leads them into the best possible university. It will also result in letting them find the best possible employer. There are some arguments whether this whole idea is good for the students or not, also right or not. It is however widely known in Japan.
Many Japanese schools have adopted this system. This helps foster the social responsibility of children. Details such as the contents of tasks, frequency and whether they perform tasks in pairs depends on the region and school.
Kanazawa University is located in Kakuma Town, Kanazawa City, Ishikawa Prefecture, and has three campuses: Kakuma, Takaramachi and Tsuruma. The location of “Angel Beats!” is the Kakuma (かくま, 角間) campus.