Valencina -The Thumb Nursefather

The House of Spiders, led by one powerful member from each of the Five Fingers, was formed to raise an individual to be the perfect wielder of the Relic Arayashiki and turn them into a tool akin to a Concept Incinerator,[5] upon which they would be used as a "landfill" to dispose of anything the Fingers wanted forgotten.[6] To this end, someone with an aptitude to the Relic was required:[5] Shiomi Yoru, the Dihui Star of the Pinky, was chosen to bear a child and pass down the unique perception of time tied to her blood

Like the other four Fingers, the Thumb is a large Syndicate with a unique culture and creed that all members follow fervently. In particular, members of the Thumb value politeness and respect to one's superiors above all else.[5] The Thumb presents a strict hierarchy, at the head of which sits the Capo dei Capi, to whom the entire Syndicate and its subsidiaries must defer. The Thumb itself is composed of a number of smaller groups typically referred to as families, or Famiglie.[6] Among these organizations, seven families, or the Sette Famiglie of the Backstreets, are considered leading member Syndicates, holding far more power and influence compared to the common subsidiaries of the Thumb.[3] One of these is La Famiglia Bognatelli, a Famiglia that gained prestige and eventually became one of the Sette Famiglie thanks to the Palermitan Style of swordplay that originated from their family.[7] A "Central" section of the Thumb mentioned for its involvement in the House of Spiders project suggests that the organization may contain other additional sub-groups. [8][9]

In practice, the Thumb's dedication to politeness means that the Syndicate demands absolute compliance to hierarchy, as when dealing with the Thumb, any action that demonstrates a lack of respect for higher authority will be met with immediate punishment. Depending on the mistake, the consequence may extend past the rule breaker, to even their blameless comrades.[10] Members of the Thumb also understand their own need to respect outsiders, and may spend time studying the hierarchy of other City factions in order to ensure they never disrespect someone of a higher rank.[11] Thumb punishments tend to revolve around the removal of body parts, such as body dismemberment or the forceful removal of one's tongue.[12] Ultimately, the Thumb will punish anyone it deems an offender, regardless of how innocent the mistake or clueless the individual is.[13]

While the attire of the Syndicate differs slightly depending on the quadrant of the City, members tend to dress in black, red, and gold attire. Each member's status can be gleamed from their uniform, as the Thumb signifies its ranks by the number of arrows on its badges, and sub-rank by the number of pins on its collars. The Thumb's weapons of choice are guns, which they make varied use of—such as through fighting with the bayonet or buttstock—in order to cut down on bullet costs.[14]

Hierarchy The Thumb's hierarchy system features four major ranks, which are then divided into multiple sub-ranks. The ranks are as follows:

Soldato (Soldier): The common foot soldier of the Thumb, and the lowest rank possible. "Common Fixers" are equivalent in rank to them.[15] The Soldato rank is divided into four sub-ranks: Primo, Secondo, Terzo, and Quarto.[16] Capo (Captain): Those who command groups of Soldatos, relaying orders from their higher-ups. They are able to act with more liberties. A Grade 1 Fixer or an Associate Fixer is considered equivalent in rank to a Capo.[15][1] The Capo rank is divided into four sub-ranks, likely the same ranks as Soldatos.[17][18] Consigliere (Advisor): A Consigliere is a higher-ranking officer who appears to have a hand in who gets to join the Syndicate.[19][20] It is unclear whether the rank belongs to more than one individual at a time. Sottocapo (Underboss): The direct underlings of the Capo dei Capi, who have permission to manage entire operations of the Syndicate within designated areas.[21] Board members of a Wing are of equivalent rank to a Sottocapo.[15] Capo dei Capi (Godfather, Padrino): The highest echelon. It is unclear whether the rank belongs to more than one individual at a time. Thumb standards of respect are extreme, to the point that individuals are not allowed to look directly at those of a higher rank than them.[22] However, Thumb members of similar rank (or outside parties of an equivalent rank) are free to speak to each other however they please, such that some members may prefer to speak to their equals in order to alleviate any pressure in the discussion.[23][24]

Occasionally, a higher-up may temporarily grant their own rank to someone of lower rank, should they see said person as a better fit for an operation or require someone else to attend to matters in their stead. However, this is far from a common practice.[25]

Recent Developments The Thumb participated in the Smoke War against the Old L Corp. and the Old G Corp., during which the members of the Sette Famiglie rose to notoriety, with some of them, such as the disgraced Sottocapo Valencina, being hailed as war heroes.

In recent times, the Thumb has been shown to be active in the South and East quarters of the City. After the fall of Lobotomy Corporation, the Thumb has attempted to gain control of its fallen Nest, particularly through the help of the Kurokumo Clan, its subsidiary. However, after the disappearance of Sottocapo Kalo and his underlings, their strength was hindered, and ultimately neither of the Syndicates was able to lay claim on the District.

During the events of Limbus Company, the eastern branch of the Thumb has attempted to gain more direct control of Hongyuan, with Capo IIII Lei Heng supporting the Shi Family during the Family Hierarch Evaluation. In the case a member of the Shi family failed to win the Evaluation, the Thumb was contracted to void the results of the Evaluation and plunge the District into chaos.[26] After Jia Xichun was declared the winner of the Evaluation, the Thumb, together with a number of other factions, marched towards Hongyuan and attempted to lay siege to Daguanyuan, although they were ultimately driven back after the death of Lei Heng and the ascension of Jia Xichun into the role of Hierarch.