Royal Capital Series

The Royal Capital Series is one of two current series within the Seiko franchise, the other being the City of Lugnicia Series, with the Royal Capital Series being the first of the two. It focuses on Royal Capital and consists of multiple games, anime, manga and novels.

Overview
The first main installment of the Royal Capital Series to be released was Seiko, which is the first game in the series. It focuses on Seiko Kamichiro who is trapped inside the Saikyo Manor with 2 other girls by Kiriko Saikyo after getting infected by the corruption. This game was released in Japan on November 25, 2010 and on January 13, 2014 in North America.

A light novel was released on October 14, 2011 called Re:Place which focuses and expands upon Royal Capital and focuses on Natsuko Samidare and Teru Kawashima.

The second main installment of the Royal Capital Series to be released was Seiko 2: Abandon Hope, which is the second game in the series. It focuses on Hanako Fujimaru who is trapped with 6 other nobles by Kiyo Matsuzaka inside a facility. This game was released in Japan on July 26, 2012 and on September 2, 2014 in North America.

A canon spin-off called Seiko ??? was released in Japan on September 25, 2014 and in North America on September 1, 2015. This is the third game in the series. This game focuses on Shiro Kamichiro, Seiko's sister and Chisa Kirisaki as they try to survive the City of Lugnicia.

A manga spin-off called Seiko Gaiden: -Another World- was released in Japan on March 8th, 2016. This gaiden manga is connected to Seiko 3: Let's Go Home. It focuses and expands on the Nobles Committee's 6th Division specifically its Special Case Bureau. It focuses on Kirito Sawamura and Himiko Nanami who work as special investigators as they aim to combat despair one case at a time.

The third main installment of the Royal Capital Series is an anime called Seiko 3: Let's Go Home, which consisted of three sides and a special OVA. The first side is Ohayo Arc, a twelve part series beginning on July 11th, 2016 and being released every Monday, which focuses on Seiko and fifteen other Noble Committee members in a Killing Game. The second side is Oyasumi Arc, an eleven part series beginning on July 14, 2016 and being released every Thursday, which focuses on the corruption of the Despair Fragments and Konomi Ando. The third side is Tasogare Arc, a one part special which was released on September 29, 2016, which serves as the conclusion to Ohayo Arc and Oyasumi Arc and the Royal Capital Series. The last one, Seiko 2.5: Otokonaji Rantaro to Kowareta Yasuri, is a special OVA which consists in one episode which was released on January 12, 2017 included on the limited edition of Seiko 4k: Virtual Reality, which focuses on Rantaro Otokonaji and his Illusionary world along with the Broken File.

In addition, this saga also has multiple, manga, novels and anime which are either spin-offs or adaptations, some of which are in-game content to main series games.

In the City of Lugnicia Series, the Royal Capital Series is said to be mere fiction by the Mastermind and does not actually exist but in the TV series of Seiko created by Team Seiko*. The only character from the Royal Capital Series who is indisputably a real character is the series' mascot, Yumi, who serves as the host and mascot for the Seiko series' killing games.

Main Series

 * Seiko
 * Re:Place
 * Seiko 2: Abandon Hope
 * Seiko ???
 * Seiko 3: Let's Go Home

Manga Spin-offs

 * Seiko Gaiden: -Another World-
 * Go Home Seiko

Novel Spin-offs

 * Seiko/Fujimaru
 * Sekai Paradise
 * Seiko IF
 * Aiko Kirigiri Special

Anime Adaptations

 * Seiko: The Animation

OVAs

 * Seiko 2.5: Otokonaji Rantaro to Kowareta Yasuri
 * Matching the Color of God

Manga Adaptations

 * Small Seiko 1・2 Light
 * Seiko: The Manga
 * Seiko: The Animation (manga)
 * Seiko 2: Abandon Hope (manga)
 * Seiko 2: Kibo o Suteru Comic Anthology
 * Seiko 2P
 * Seiko 2.2: Sunny and Luna
 * Seiko 2: Re:Create
 * Seiko Luna
 * Seiko ??? (manga)
 * Seiko Fumei Chaputa Comic Anthology
 * Seiko Fumei Chaputa - High Militant Mode

Novel Adaptations

 * Seiko 1・2 Beautiful Days