Kamiyachō Shareo (紙屋町シャレオ) is an underground city located in central Hiroshima.
It is the key underground network connecting public transport services around the Kamiyachō area.
Astram Line's train runs under Kamiyachō Shareo, around Rijō-dōri and across Aioi-dōri.
The area is operated by Hiroshima Chikagaikaihatsu which was established by city, prefecture, financial institutions and private enterprises.
On the corner of the Kamiyachō intersection, there was a traffic control tower.