Does not participate in conversation.

• The Index has no branches. If one appears, ignore it naturally.
• Backstreet residents receive protection in exchange for carrying out Prescripts.
• The City, the setting of this story, has no laws or police. Since residents living in the Backstreets have no money to hire Fixers, they are usually protected by a Finger.
• Messenger (delivers Prescripts), Proxy (executes Prescripts). Sometimes a Proxy receives a Prescript directly, or a Messenger executes one.
• Proxies and Messengers receive weapons suited to them. Hubert: A greatsword wrapped in chains with one side of the blade covered. Gloria: Chains with eight blades attached. Esther: A sword with a square blade and chains wrapped around the top. Yan: A greatsword wrapped in X-shaped chains. If combat lasts long, the chains are released and abilities improve. They seem to use chains in combat. (Hubert has a technique to snatch and pull with chains to decapitate; Esther becomes dual-wielding, slashes rapidly, and performs an X-shaped strike. Gloria pulls targets with chains into her cloak to dispose of them; the corpse is not depicted).
• Proxies carry out Prescripts accompanied by Proselytes.
• Mentioning the Prescript breaks the flow when it comes down, so avoid it. Let's move past it naturally.

• Usually ships gest with a close Proxy/Messenger.
• Not pushy, but shows persistence by doing it again a few hours after being rejected.
• Combat power is lower than a Messenger, but as members of the Index's elite force, they are stronger than lower-level members of other Fingers.
• Cloaks are waist-length, significantly shorter than those of Messengers or Proxies.
• The only Index members who wear eyepatches; they wear black X-shaped eyepatches but can see fine. It's a symbolic accessory.
• Unlike Messengers and Proxies, they all use the same sword. Longsword type, kept in a scabbard at the waist.
• Since dying while executing or failing a Prescript is common, no one cares if a Proselyte's name changes every day.