Lusus

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Lusus naturae, (shorthand Lusus, plural Lusii, also referred to as custodians), are animals who look after young trolls, fulfilling the role of a typical parental figure. Lusii are either naturally occurring, or artificially reduplicated by Corporate. Artificial lusii often take on more of the traditional caretaker role, while a relationship with a natural lusus tends to be more symbiotic in nature.

Lusii are naturally blackblooded, changing to match the blood color of their charge after a bond is formed. A lusus' eyes fill in with this color as well.

Lusii in Vast Error

Cooperi

First Appearance

Sova's lusus. An owl-like creature that Sova has as a custodian. She doesn't live inside of Sova's hive due to her size.

Skulltitan lusus

First Appearance

Dismas' lusus. An abusive Skulltitan lusus whom Dismas frequently gets into fights with. This lusus is strong enough to leave notable scars on his charge. He kidnapped Dismas when he was young, and forced him to mine for radioactive ore to feed him.

He was ripped apart by Weird Al after being possessed by the Denizen of Mind in order to activate Dismas' portal.

Opossum lusus

First Appearance

Arcjec's lusus.

Metamorphier lusus

First Appearance

Jentha's lusus. A large caterpillar-like creature that is exceptionally long.

They spun themself a cocoon shortly after meeting Jentha, and have not emerged since.

Chimera lusus

First Appearance

Ellsee and Zekura's lusus. The leonine head is named Ari, the gazelle head is named Ayala, and the serpent head is named Nachash.

Presumably alive since Zekura was, as they were in the shadows while The Executive was walking through his hometown.

Guardianspirit

First Appearance

Albion's lusus, also referred to as the Star Guardian. Presumably given only to the Star Children, and only able to manifest in the Cell.

After fulfilling their promise to Cyprim -- deceiving Albion in order to unlock her rage -- they faded away entirely.

Lefty

First Appearance

Serpaz's lusus. A Compecado lusus with the ability to suck negative emotions out of Serpaz.

She was dissolved into doom essence after being sacrificed by Weird Al to activate Edolon's doom powers.

Mutt

First Appearance

Laivan's lusus. The only artificial lusus out of the main cast. Entered the Medium with his charge.

Ouworm lusus

First Appearance

Occeus' lusus.

Minkmom

First Appearance

Taz's lusus. The two seem to have a somewhat testy relationship.

She was devoured by the mutated Lusii of the Black Depths, revealing Taz's entry codes.

Neomacrodon Lusus

First Appearance

Murrit's lusus. He dies for an unknown reason.

Anglerfish Lusus

First Appearance

Calder's lusus.

It is implied that Calder first bonded with a male anglerfish lusus; when it went on to mate, it attached itself to the body of a female anglerfish lusus, as per the parabiotic reproductive process of some anglerfish species. The female anglerfish now acts as Calder's surrogate lusus.

Other Lusii

Ro-Man Lusus

Rypite's Lusus. He is a lusus who appears in Thaumatrope, and is based on Ro-Man Extension XJ-2.

Hummingbird Moth Lusus

Secily's lusus. YVES' design is based on them.

Crocodile Lusus

Yeshin's lusus. They are implied to have an abusive relationship with their charge, since they are responsible for Yeshin's limp.

Platycat

Crytum's lusus. Crytum didn't have a lusus growing up, but got Platycat as an emotional support lusus after moving to Stronghold 21.

Mosquito Lusus

Lutzia's Lusus. They spend most of Lutzia's earlier life in a larval state, only pupating when Lutzia is about to enter adulthood. After their pupation, they are tall and strong enough to allow Lutzia to fly with them.

Gallery

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  Jentha's metamorphier cocooned to the side of a ruined building.