Shibuya

Shibuya is the main capital of the Japanese Imperial Demon Army. It contains the JIDA's headquarters and is home to many noble families, such as the Hiragi and Sangu.

Second Shibuya High Arc
In 2016, the vampires in Sanguinem discussed the growing threat of the Japanese Imperial Demon Army. Krul declared war on the JIDA for the crimes of killing their kin, stealing their territory, and dabbling with taboo magic.

Trivia

 * A real ward in Japan known for its nightlife and fashion.