Shibuya

Shibuya (渋谷区) in Seraph of the End is the first capital of the Japanese Imperial Demon Army. It contains the army's headquarters and is home to many noble families, such as the Hīragi, along with the Ichinose family, and Sangū. After being at the centre of a multi-faction war between the Demon Army, and Shikama Dōji, and the Hyakuya Sect, the city is formally conquered by members of the Progenitor Council who arrive in the aftermath of the war to claim ownership.

Details
The city has been well-kept and appears to be a human city prior to the Apocalypse. It is a city with many buildings, including schools. The Moon Demon Company barracks lie underneath one of the high schools. The city is surrounded by defensive walls that are a few stories high.

The main headquarters of the Japanese Imperial Demon Army are located here as well.

Society
The society operates similarly to human society prior to the Apocalypse and even has ice cream and schools. This society is completely controlled by the Hīragi family and their subordinate families. Many humans live here in peace.

However, vampire experimentation is performed here, and vampires can escape from their research facilities on rare occasions. Human experimentation is performed extensively, and Second Shibuya High is an experimental ground that exposes the humans in the school to demonic auras. Humans who are possessed are typically killed by the demons or executed by the army, while those who have resistance to the demons are used as soldiers. The Moon Demon Company has barracks beneath the high school and trains its soldiers there.

This city has strict population regulations on immigrants but encourages its own soldiers and citizens to proliferate. Even after its soldiers kill off the vampires protecting human livestock, the city will not allow any of the people entry depending on how full it is and will leave them to the vampires and Horsemen outside the walls.

Known residents

 * Yūichirō Hyakuya (Former resident)
 * Shinoa Hīragi (Former resident)
 * Yoichi Saotome (Former resident)
 * Mitsuba Sangū (Former resident)
 * Shihō Kimizuki (Former resident)
 * Mirai Kimizuki
 * Tenri Hīragi
 * Kureto Hīragi
 * Seishirō Hīragi
 * Aoi Sangū
 * Shinya Hīragi

Second Shibuya High Arc
As punishment for disobeying orders, Yūichirō Hyakuya is sentenced to high school until he can make a friend. While there, a weak and starving vampire escapes from a research facility. Yu, with help from Yoichi is able to defend the other students until Guren Ichinose arrives with the Moon Demon Company and exterminates the vampire.

In the Moon Demon Company, Yu becomes a special private and trains in their classroom alongside Yoichi and Kimizuki. He joins Shinoa Hīragi Squad after acquiring a Black Demon Series weapon.

Osaka Arc
Kureto stages his coup on Shibuya by using Mirai to attack the city while he goes in to kill his father.

Shibuya Arc
Outside the city Yu is brought before Saitō after a Hyakuya agent managed to kidnap Yu from within the city before Shibuya is affected by fires as the Hyakuya Sect attack the Japanese Imperial Demon Army stationed there.

The city sustained heavy damage from the clash between Shikama Doji in Shinoa's body and Saito. Further ruin was brought by the Hyakuya Sect soldiers and their invasion. Although both threats were sealed, and fended off respectively, the city's fate was not decided by the Demon Army defending it, rather a third faction that arrived in the aftermath of the war.

With soldiers lying deceased, the capital of the Japanese Imperial Demon Army is declared to have completely fallen by vampire progenitor members, namely Third Progenitor Lest Karr. The human inhabitants of the city have been spared by Fifth progenitor Ky Luc who mandates no resistance in exchange for their lives.

Mt. Fuji Arc
A jail cell in Shibuya now houses the commanders of the Demon Army, Kureto and Shinya. It is also used to contain Shikama Doji himself. Saito, along with Hyakuya Sect staff including Basteya Irclu, on account of unifying with the vampire progenitor council members, now intend to use Shibuya as the location of accessing the First's past memories.

Fire still billows from buildings in the aftermath of the war, where Saito and Urd observe Shikama Doji who remains confined in his prison. For where the First is, there is a corridor for his location. This was the location where Saito accessed Shikama Doji's memories. It is probable that Saito learned that the Seraph Civilization that was established on Earth that also had human appearing angels along with many Homunculus' was working towards gathering light as part of the The Babel Project.

Saito here may have also witnessed Mikaela's death in the memory, and the homunculus named Yu along with the Tower of Babel destroyed by Trumpets of the Apocalypse and a humanoid angel apparently at God's direction. The location was secure enough for Saito to have the time to potentially access more of Shikama Doji's memories, where he certainly did view the first humans brought to Earth by Yu the homunculus. Further, potential human links between angels and those who would be connected to vampires of later eras ws able to be accessed. This may have included the human link between Bael and Urd as well as the human link between Paimon and himself to be observed.

Although Saito succeeded in capturing Shikama Doji as was partly his original reason for launching an all out assault on Shibuya, in also successfully accessing his memories here he would flip from wanting to undermine the First to instead sympathize with him given all he had endured by himself.

While referred to as the Demon Army headquarters, in practice Shibuya is under the control of Saito and his Hyakuya Sect combined with members of the vampire progenitor council. It is they who occupy a throne room in Shibuya when Yu arroves. By nightfall at that point, the fires are not seen on buildings that appear undamaged.

Trivia

 * is a real place in Japan.