Headquarters has fallen eerily silent, now almost empty following an attack from the outside. Master is called urgently to the Control Room, and along with the single Servant who managed to escape harm, Rayshifts to determine the cause.
They arrive in mid-seventeenth century Japan—the Edo period. In the deepest reaches of Edo Castle, the epicenter of the issue, the silent abnormality still grows. The castle's Ooku, a realm detached from the rest of the world, has transformed into a bottomless labyrinth brimming with sinister mystery. The party roams the endless paths of the luxurious osuzurouka, the "corridor of bells," in search of an exit.
An event in Fate/Grand Order, released on the Japanese server on March 27, 2019 and on the NA server on March 23, 2021.
A singularity that formed on the bleached earth set in 17th century Japan during the Edo Jidai. It takes place before Yugakshetra as a result of Arjuna Alter absorbing the rest of the Indian pantheon and was created by Beast III/L.
