Amahara

This southernmost location on the main island of Japan is famous not only as a resort town but a dark trade port, with different countries having bases on it.

It is shady but still has a booming tourism industry, known for its beach, even Taimanin and Onmyoji used it as a vacation spot.

History
The harbor of Amahara is a place controlled and jointly managed by crime organizations and demons. The City has a Demon Gate but unlike towns like Amidahara, an unspoken code exist among the powers, to protect profit and fighting is not allowed, which is also the only law that exists on Amahara.

Opposite to the main islands of Japan, it is a tropical island, which experiences the opposite weather. Meaning that at winter it is infact the most hot.

In Taimanin Asagi Battle Arena, Fuuma Kotaro uses the location multiple times to relax. He also is attacked by Doppelgangers, that imitate Natsume Sayoko and Fuyuno Reiko of Fallen Wife.

Trivia

 * Though not confirmed, it may have been the vacation spot that Asagi, Sakura and Murasaki were send to in Taimanin Asagi Summer Days.