Space filled with the feelings of the soft air and lights.

The Spiral Slope is a continuous spiraling walkway spanning around 450m on the east side of this tower. Visitors can use this slope to ascend and descend to/from each floor from the 1F to the 13F in a relaxing rustic atmosphere. At the center of the Spiral Slope is a slide installed on each floor, which guests can take floor-by-floor, the whole way down. The paintings exhibited along the entire length of the slope also provide a poignant sense of Japanese, and Hiroshima, culture in this unique space.


Exhibited along the "Sampo" SPIRAL SLOPE is an original work by Shuho Sato, a famous Japanese manga artist who has produced many highly praised works. It is an extensive space in which you can feel and experience embattled the past, inspring present, and bright future of Hiroshima. Immerse yourself in a unique experience that can only be found at HIROSHIMA ORIZURU TOWER.

Artist Introduction

Manga artist

Shuho Sato


Born in Obihiro City in Hokkaido in 1973, his masterpieces include “UMIZARU”, “Say Hello to Black Jack”, and “The Isle of Tokkou”. In 2010, he founded "Manga on Web", the first online e-book store run by a manga artist. He offers the secondary use of his work “Say Hello to Black Jack” for free, and has tirelessly worked on the issues surrounding the secondary use and copyrights of manga works in the Internet Era. In 2015, he launched the web journal Manga. He also offers the "Densho-bato (e-book carrier pigeon)" service, through which he allows manga artists to sell their works (e-books) online.


This work represents "peace".

What does "peace" mean?

Some people might think of "peace"

as the antonym of "war".

Others might find "peace" in the small things

that they see every day.

The concept of "peace" may be different between

countries, cultures, principles, and beliefs.

So how can we give a shape to "peace"?

Of course, "peace" by its nature does not

have color or shape.

But can there be a shape of "peace"

that everyone can agree with?

That's the thought I had in mind

as I created this piece.

I hope that the word "peace" would come up

in the mind of everyone while enjoying my work.