Ashinaka High School

is a high school that Yashiro Isana attends. It is a large academic institute that stretches across an entire island just off the coast of Shizume City. This school is based on Tokyo University of Technology.

Location
The school is located on a remote island off the coast of Shizume City, accessible only by a unique train system, in which a series of trains transport people from the mainland to the island directly beneath a large bridge. Transportation is only open to students using PDA's and lacking one results in the inability to enter or exit the island.