The Eye of the Midnight Sun appears to be very influential. They are also powerful enough to almost rival the Clover Kingdom and possess many mages loved by mana. They all despise the Clover Kingdom. They are led by Licht, and all members speak highly of him and will never betray him. They even place seals to prevent information being leaked by members.
Those humans who join are given "true names" 「真の名 Makoto no Na」 and are promised to be reborn into their "true forms" 「真の姿 Shin no Sugata」. This ceremony is actually for marking them as sacrifices for a Reincarnation Magic spell.
They have multiple informants within the Magic Knights, including the captain of the Golden Dawn squad, William Vangeance. Some of them are unwitting traitors, like Gueldre Poizot.
Base of Operations
Although they have smaller locations in and around the Clover Kingdom, the group's main hideout is a floating dungeon within the Gravito Rock Zone. Within the dungeon is a network of tunnels, stairs, and chambers and there are several entrances to the outside, making it easy to infiltrate.