Ouroboros (身喰(みく)らう(へび)), also known as the Society (結社(けっしゃ)), is a mysterious organisation that operates from the shadows.


With its access to powerful, talented agents and the latest technological advances, it is (in)directly involved of many incidents that occur in Zemuria. Their ideals often clash with those of other parties, such as long-time rival the Septian Church and more recently the Bracer Guild.


It is unknown when Ouroboros was founded. Earliest reports of their involvement date back to S.1192, prior to the Hundred Days War, but it is generally assumed that the organisation has been around for much longer. Ouroboros is operating in order to complete the Orpheus Final Plan, which is divided in three phases: the Gospel Plan, the Phantasmal Blaze Plan and the Eternal Regression Plan. The meaning behind the Grandmaster's plans is guiding and witnessing what endings await the Sept-Terrion in the hands of man of "this possible world".[1]

The aim of the first phase, Gospel Plan, was to obtain the Sept-Terrion of Space, the Aureole, which was in the possession of the House of Auslese. The Aureole possesses the ability to generate infinite amounts of energy, which led its original owners to seal it away in a alternative dimension. Ouroboros used the Gospel, a terminal of the Aureole, to release the seals situated in City of Grancel's Sealed Area and the four Tetracyclic Towers. From the alternative dimension emerged the floating city of Liber Ark, on which Ouroboros retrieved the Aureole from its core. The Gospel Plan was guided by the third Anguis, Georg Weissmann.

The second phase, Phantasmal Blaze Plan, was "a plan to use the Hollow Phantasm of Crossbell to awaken the blaze in the Empire". For this plan, Ouroboros was operating simultaneously in Crossbell and Erebonia. In Crossbell, they collaborated with the Crois Family to witness the completion of the man-made Sept-Terrion of Zero. In Erebonia they staged battles between the Sept-Terrion related Deus-Excellion until they were placed into a deadlock by Giliath Osborne. They decided to collaborate with him and advance his Great Twilight Plan.

The third and last phase, Eternal Regression Plan, started after completion of the Phantasmal Blaze Plan. The aim and scope of this plan is currently unknown.


Main articles: Anguis and Enforcers

Ouroboros is led by the infallible Grandmaster, loyally supported by the seven Anguis. All seven seats of the Anguis are occupied; if one seat does happen to open up, the Grandmaster is responsible for inviting someone to take this seat.

Anguis I
Anguis II
Anguis III
Anguis IV
Anguis V
Anguis VI
Anguis VII
Thirteen Factories
Enhancer Jaegers

The plans drafted by the Grandmaster and overseen by the Anguis are executed by the powerful agents known as Enforcers. The first Enforcer, Campanella, is the only Enforcer known to report back directly to the Grandmaster. Some Anguis, such as the Seventh, also have a private army at their disposal.

 Relation with the Septian Church

Like Ouroboros, the Congregation of the Sacrements of the Septian Church, in particular the Gralsritter, also seeks artifacts. There are, however, some differences in their approaches to artifacts.

The Septian Church has dedicated its chivalric order to retrieve 'live' artifacts to subsequently seal them away in Primal Grounds underneath buildings of the Church. Ouroboros, however, seeks the Sept-Terrion for a greater purpose aimed to guide "the souls of all"[3] and hands Artifacts to people to help them, such as the Fool's Locket to Hermann Conrad[4] or the equipment required for the stage at Arc en Ciel.[5]


  1. 1.0 1.1 Sen no Kiseki IV -The End of Saga-, Final Curtain: " Flower Petals at Blaze's End".
  2. Campanella is an Enforcer who serves as the right hand of the Grandmaster.
  3. Trails of Cold Steel II. Finale, 12/31.
  4. Trails in the Sky The 3rd, Prologue.
  5. Zero no Kiseki.