Aozora and Kusunoki gakkyu are classes which are established in Toyohashi Citizen Hospital. 
Aozora is for elementary school students.
Kusunoki is for junior high school students.
The teachers come to the hospital from Muro Elementary School and Muro Junior High School.
Even though students are under treatment in the hospital, they have an opportunity to have schooling. 
They study positively and cheerfully there.