Amanogawa High School

One of the two main schools in Kamen Rider Fourze. Shortened to AHS.

Because a phenomenon known as The Hole exists over the school, there are cases of people transforming into monsters known as Zodiarts using the power of Astro Switches which control Cosmic Energy.

The campus is the size of a small city. This is because the director is using the school as a testing ground to create Zodiarts and search for the Twelve Zodiac Apostles.

The other main school in the show is Subaruboshi High School.

Trivia

The school is named after the Japanese word for "The Milky Way" galaxy. It literally means "the river of heaven", because the Milky Way stars looked like a river in the sky to ancient easterners.