Bal Masqué

An organization of Denizens who moved into the human world several millennia ago under the Grand Master and the God of Creation, the Sairei no Hebi (, Sairei no Hebi "Snake of Festival"). After his defeat by Flame Hazes, it is currently led by three powerful figures called the Trinity. Since then, the Bal Masqué stayed low and became an organization to support Denizens, like Outlaw does with Flame Hazes. Their goal is to accomplish the "Grand Order", of which the details are yet unknown, and the Power of Unrestraint called the "Psalm of Grand Order" and Reiji Maigo, which resides in Yuji, are the keys vital to their plot. The subordinate members of Bal Masqué are largely classified into three types of functions; the combatants called Wanderers, the trackers and scouts called Jaegers, and the messengers called Heralds.

Sydonay / Senpen ( "Thousand Change") (Crimson Lord)

Sydonay is one of the Trinity of the Bal Masqué, entitled as the "General". For some time, he stayed outside of the Organization, because he wanted the freedom to do as he wants, such as serving the Denizens as a bodyguard for his personal hobby. He also appreciates human civilization enough to enjoy smoking cigarettes. However, after finding Reiji Maigo, he has returned to his previous position. He usually looks like a tall, well-built man wearing a pair of sunglasses and dark colored suits, but with great shape-shifting abilities, he can change into various chimeras　without the use of spells like other Denizens do. In addition, when he is on duty as the General, he wields a spear-like hougu called the "Shintetu Nyoi" ( "The Divine Metal at Will"), which shifts shape and size at Sydonay's will. With this weapon in hand, he leads an army of Denizens and Lords, destroying the major Outlaws throughout Europe and China. Sydonay and Margery have fought one another in the past, as Sydonay describes it as a "reunion" during a battle with her.

Hecate / Itadaki no Kura ("Supreme Throne") (Crimson Lord)

Hecate is one of the Trinity of the Bal Masqué, entitled as "the Priestess". She also controls the movements of Seireiden, Bal Masqué's base. A small pale girl with white cape and hat　wielding a staff-like Hougu, Trigon, she doesn't speak much. Sydonay seems to care for her a lot. Bel Peol always mentions her having "eternal existence". Her position is very important with respect to what the Bal Masqué plans to do with Reiji Maigo, since she is the one who can take the power of Reiji Maigo and send it out to everything in Seireiden.

Hecate is a sad, quiet character, who has taken up the habit of prayer - despite having no one to pray to and despite Bel Peol considering it an odd thing to do - and frequently laments that she is 'empty'. In the light novels, it is implied that Hecate is praying to the Bal Masqué's god, the Ceremonial Snake of the Festival. In contrast to her counterpart in the anime, the light novels depict Hecate as a cold and feared leader that even the entire Bal Masqué itself fear her. She has hobby of trekking in mountain tops, yet she despises mountain climbers who litter her favorite sites, so she slaughters them on sight. She is extremely skilled in combat using Aster, a Power of Unrestraint which shoots energy beams like meteor shower, and is capable in grappling as well which equals to Shana's skill. She has a flute that can summon dragons of blue flame body. She also plays this flute when announcing the end of Seireiden's anchoring.

In the anime, Hecate synchronized with Yuji, allowing her to draw on his sense of self to fill the void inside of her. The purpose of this synchronization was more sinister, however; once midnight struck, the Reiji Maigo attempted to restore the power of existence of its bearer. Since Yuji and Hecate were synchronized at the time, Reiji Maigo started pouring out an infinite amount of power in an attempt to fill Hecate's capacity. She is defeated by Yuji when he points out that the memories and feelings Hecate is reveling in are not hers, but his. When he says that Hecate is just as empty as she was before synchronizing, she is forced to face the void that lies inside of her and loses control of the synchronization, Seireiden and herself, requiring Sydonay to save her.

In the second season of the anime, the transfer student Konoe Fumina bears an absolute resemblance to Hecate and her growing bond to Yuji has Shana and Yoshida on the edge of uneasiness, which slightly lessens after a study session. In episode fifteen, it is revealed that Fumina is in fact a faux vessel created by Hecate, who had been sent to primarily keep an eye on the Reiji Maigo and seal the Silver should it attempt to escape. Her secondary purpose is to collect her memories of interacting with Yuji and the others. In the last episode of the second season, it seems that the memories and feelings from Konoe Fumina has given Hecate human feelings. This in return, helps Yuji and Shana overcome the Taimei Shihen, leaving a confused Hecate to wonder what has overcome her state of mind.

Bel Peol / Gyakuri no Saisha ( "Judge of Paradoxes") (Crimson Lord)

Bel Peol is one of the Trinity of the Bal Masqué, entitled as the "Strategist". Takes the form of a woman with three eyes, but has an eyepatch covering her right eye. A scheming character that would have no qualms in manipulating her unsuspecting subordinates and sending them to die. Apparently she also has a gift for engendering loyalty in her subordinates, such as Vine, as she is capable of inspiring them to perform obviously dangerous tasks on her behalf. Her strategic skills are balanced by a considerable aptitude for combat.

Fecor / Rantei (Storm Hoof") (Crimson Lord)

Fecor is a Lord who looks like a feeble middle-aged businessman with features of stereotype devils, such as horns, pair of bat's wings and a long tail. He usually acts as a guide of Seireiden, greeting Denizens and Lords at the gate. Being polite and timid, young Denizens like Vine had thought of him as mere guide but in fact, Fecor is Bel Peol's right-hand man, who is in charge of the Seireiden's defense. Despite his looks and behaviour, he uses very powerful and deadly "defensive" Power of Unrestraint called Magnesia, which creates storm of heavy particles. The particles are controlled at Fecor's will, its streams inflict heavy blows upon the enemies in spite of it's true purpose as defensive maneuver. They can also be concentrated to form giant objects to crush the enemies.

He appeared in Misaki city as Hecate's bodyguard, fending off Flame Hazes away from her with his power.

Vine / Ryūgan ( "Glazed Eyes") (Crimson Denizen)

Vine is a Jaeger and a subordinate of Bel Peol. Depicted as a motorcycle-rider, with only his eyes visible due to his bodysuit clothing. He brought the Gordian Knot, which can activate a large-scale destructive Power of Unrestraint, to the Tendoukyuu (Palace of Heaven's Road) to stop the exaltation of the new Enpatsu Shakugan no Uchite (i.e. Shana).

Orgon / Senseirei ("Commander of Thousand Conquests") (Crimson Lord)

Orgon is a Wanderer and a subordinate of Bel Peol. Depicted with a transparent body in an old-French royal costume. Sent on a different mission with respect to Vine, but the destination is still Tendoukyū (Palace of Heaven's Road), only to meet his fearful doom when facing his old rival- Rainbow Wings, Merihim.

Zarovee / Shūsan no Tei ( "Gathering and Distribution of Four") (Crimson Denizen)

The Jaeger who looks like an old man with a gentle smile. He can split into five duplicates, each wearing scarves in red, blue, yellow, green, and pink (the colors, numbers and their exaggerated moves are parody of Super Sentai/Power Rangers), though he/they is/are extremely weak, possessing so little power that equals a Torch that neither Yuji nor the Flame Hazes had noticed his/their presence. He/they abducts Yuji by threatening to consume the citizens of Misaki city, in order to lure the Flame Hazes into a trap. But Yuji takes him/them by surprise, destroying one of the duplicates with a fireball along with the hostages under the Seal. Immobilized out of panic, rest of Zarovee were killed off in a matter of moments by Yuji who had wielded the Blutsauger.

Bifrons / Kōgōga ("Howling Fang") (Crimson Denizen)

The Wanderer with a chimney-like body, insectoid legs and a burning head that resembles a torture device, which makes him look like a giant, disfigured candle. He wraps himself in a hougu Tarnkappe, which grants him the stealth in exchange for speed and mobility. He is skilled in destroying the enemies from a long distance with projectiles made of surrounding rubbles, shot from his cannon-like body. He usually works with Zarovee, making contacts by cellphone. When Yuji prevented their scheme, Bifrons fires upon Shana, only to have the cannonball shot down and get caught in the explosion. He barely survived but Sabrac, who had used him and Zarovee as decoy, forced him to shoot cannonball with full power and Bifrons perished.