I'll be updating this with content when the time comes - so for the time being, here's some basic info. These Mamonos are based on the in-game universe of Illusion Connect.
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The Lens-Born are Mamono that aren't inherently born in the Mamono Realm. They are 'created' when the aspirations and desires of those who have been named and have lived a lifetime ago find their souls adrift to the Mamono Realm - and are then pieced together into a new entity that embodies both the Mamono Realm's whim and fragments of their former identity. The core of a Lens-Born is their Lens - a crystalline center that hosts the soul of their previous existence. This is what they have instead of a normal living being's heart, and shattering the Lens of a Lens-Born creates a literal 'black hole' in their chest that corrupts them until they turn into a corrupted life form whose only driving force is a desire they once had turned obsession, known as an Umbral.
Umbrals can further in transformation, becoming the source of a reality-warping Demon Realm that traps individuals as they are subjected to the obsessive notions of the corrupted Mamono. Choked by Demonic Energy, they slowly configure into Umbrals that follow the central Umbral's whim, while the latter becomes an Umbral Lord.
Lens-Born are aware of the threat an Umbral Lord can pose, as they can swallow entire nations under the vision of their obsession and turn people into defunct Umbrals. This is why Lens-Born are compelled to dispel Umbrals before they could turn into Umbral Lords, and take down Umbral Lords by restoring the Lens lost to them. This technique is known exclusively to the Lens-Born, and they share this only to people chosen in their eyes known as 'Radiants'.
All Lens-Born live in the 'Dreame' - a fabricated adaptation of the Mamono Realm. Within the Dreame, places that are bustling with life are abandoned and uninhabited, and supposedly-empty settlements are vast cityscapes. For the most part, Lens-Born are unable to interact with people and Mamono of the real world unless they are Radiants, whom they can meet and visit in the realm of sleep. Umbrals, however, are able to escape the veil between the real world and the Dream to sate their desires outside of their home realm. Certain Lens-Born are also able to leave in and out of the Dream due to the vast amounts of Demonic Energy and magic potential within their Lenses.
Additional footnotes : Most of the Lens-Born are categorized under the Succubus family of Mamono, as they are all 'phantasm' Mamono by nature and exist within the realm of sleep. Sub-specie clauses are included when a particular Lens-Born has parts and/or features that echo to existing Mamono families such as Harpies, Lizardmen, Scyllas, etc. Additionally, the existence of Lens-Born of one type in multitude is yet to be seen,
LENS-BORN Mamono according to faction/belief-
Uroborian - Lens-Born that are the closest to becoming Umbrals or Umbral Lords. They are often driven by one or two destructive notions that had been carried over from their previous lives, and they seek out mana in an effort to quell their appetite to influence others – though this often speeds up their transformation into Umbral Lords.
Fennebeth – Succubus x Mummy. Her original identity was that of a princess regaled for her beauty. While she is capable of corrupting men to do her bidding, she inflicts curses through the bandages on her body, which move and interact with her as though it were a separate entity.
Ashwaya – Succubus x Banshee. A warmonger in the Uroborian belief who believes evolution is achieved in battle. She often attacks settlements within the Dreame to enslave lesser Lens-Born and turn them into Umbrals.
Gemmy – Succubus x Vampire. She eats anything and everything single-mindedly, becoming fixated at things imbued with mana. Once she starts obsessing over the flavor of said person’s mana, she will find him and ‘consume’ him.
Peafowl – Succubus x Harpy. Her brilliant feathers are able to captivate men, women and Mamono on sight. They also steal the living energy of her onlookers, leaving them devoid of emotion and vulnerable of becoming Umbrals.
Rotania – Succubus x Ghost. A dangerous Mamono within the Uroborian belief. She had always been viewed as a pure Umbral Lord from birth, and seeks to expand the influence of the Dreame to the real world – even if she has to deconstruct anyone standing in her way.
Barinas – Succubus x Living Armor. Covered from neck to toe in a strange black vestment and armed with a huge black spear, she seeks to subdue life forms that happen upon her. She will, however, submit to other Lens-Born who will help further said goal – such as Rotania.
Astaroth – Succubus x Cursed Sword. Strangely attached to the existence of Barinas, as they were siblings in their previous lives. Her attachment is in such a degree, that she will rape anyone that Barinas would fancy, as if testing said person if he/she is worth Barinas’ time.
Annis Dora –Succubus x Mimic. Her demonic box has a mind of its own. When finding prey, she sics the box on said individual – and traps him/her in another world wherein the Annis Dora unleashes her lust, far from her calm outer shell.
Seeger – Succubus x Dryad. She is said to take root and bloom from the collective mental of Umbrals. She seeks mana to achieve a true corporeal form, but is often beset by emotions that were never hers to begin with.
Amon –Succubus x Sphinx. She summons Mummies to her side in an effort to amuse herself and cause mayhem. The Lens-Born Fennebeth is said to be a creation of hers that eventually broke off from her control.
Nicola – Succubus x Beelzebub. Capricious. Spiteful. She likes inflicting pain on others in the form of explosive blood – but that pain quickly turns into pleasure, especially around men which they are usually distasteful of.
Liberosian – Lens-Born that avoid siding with any other factions within the Dreame. They often pursue the meaning behind their existence, which explains why they will push the boundaries of what is acceptable in the eyes of Lens-Born, even if they are at risk of becoming Umbrals.
Hersey – Succubus x .
Mavis – Succubus x Phantom.
Yuffie – Succubus x Myconid.
Natata – Succubus x Sea Bishop.
Sophie – Succubus x Cait Sith.
Hatter – Succubus x Wererabbit.
Rikia – Succubus x Angel.
Ophelia – Succubus x Dhampir.
Flora and Nono – Succubus x Living Doll.
Rubi – Succubus x Cu Sith.
Lily- Succubus x Zombie
Phoenician - Brooke, Iason, Selena, Miyuki, Phoebe
Tobunkai - Chiyo, Hachi-shiki, Mei, Kanata, Shinai
Seedarian - Mia, Domessa, Elena, Averyl, Lunar, Nefir
Muscipulan - Adelais, Cubie, Saya, Kichou, Victoria, Anna
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Sonia – Succubus x Scylla.
Xinyuan – Succubus x Kakuen.
(Content will be added later on!)