Not-Hoth is home to humans, mainland sa-khui, several Sakh-descended island lineages, and a small number of other extraterrestrial inhabitants. Sharing a planet, carrying a khui, or experiencing attraction does not automatically make two species reproductively compatible.
This entry distinguishes established compatible pairings from uncertain ones and explains how mixed-ancestry children inherit traits. It also separates the biological function of the khui from the inherited anatomy of its host.
Human–sa-khui reproduction is established. A human and a mainland sa-khui partner can conceive a child, although conception is never guaranteed in an individual pairing. A child may inherit physical features associated with either parent, including human facial features and Sakh-derived horns, tails, or skin characteristics.
A human parent does not transform into a sa-khui during pregnancy. The fetus develops within the pregnant parent's existing reproductive anatomy. Children born to these families require their own khui to survive the planet's atmosphere.
Do not assume every child inherits an identical combination of traits or that the exact proportions of human and Sakh ancestry can be read from appearance alone.
Mainland sa-khui, Strong Arm, Tall Horn, Shadow Cat, and the Sakh-descended people known socially as Outcasts share enough ancestry for reproductive compatibility within this campaign. Their lineages are variations of a related population rather than completely unrelated species.
Strong Arm ancestry is associated with four functional arms; Tall Horn with exceptionally long horns; and Shadow Cat with claws and pronounced fangs. Outcast is a social designation and has no single required physical trait.
Mixed-lineage children may inherit characteristics from either or both parents. Inheritance is variable, not a menu of guaranteed powers. A child with one Strong Arm parent does not necessarily have four arms; one with a Shadow Cat parent does not necessarily have claws.
Within this campaign, humans may form reproductively compatible pairings with Sakh-descended islanders. The same basic cautions apply as in human–mainland sa-khui families: fertility varies, pregnancy is not guaranteed, and children can inherit a range of parental features.
A human–Strong Arm child may or may not inherit four arms. A human–Tall Horn child may develop prominent horns. A human–Shadow Cat child may inherit claws or pronounced canine teeth. None of these outcomes has a fixed established probability.
Mixed ancestry is not inherently a disease, disability, or source of supernatural abilities.
Drakoni are a distinct extraterrestrial people, capable of humanoid and dragon forms. Ashtar, a golden Drakoni former gladiator, lives among the Icehome community and is Veronica's mate. His biology differs significantly from that of the Sakh-descended peoples.
Do not assume Drakoni and humans, Drakoni and sa-khui, or Drakoni and islanders have the same documented reproductive compatibility as human–Sakh pairings. Specific reproductive outcomes for such pairings must be grounded in established campaign facts, not inferred merely from attraction, resonance, or the ability to shift forms.
Likewise, other extraterrestrial species encountered in a story are not automatically compatible with humans or Sakh descendants. Where evidence is absent, state that compatibility is unconfirmed.
The khui is a living symbiont, not a universal genetic translator. It enables suitable hosts to survive Not-Hoth's atmosphere, contributes warmth and healing, and can produce resonance between compatible potential mates.
It does not rewrite a host's species, create horns or claws, supply extra limbs, or guarantee that any two organisms can conceive together. A khui does not itself determine the appearance of offspring; inherited traits come from the biological parents.
Resonance is an involuntary khui response associated with a biologically compatible potential mate. It typically produces humming near the heart and a strong reproductive drive. Human–Sakh and compatible Sakh-lineage pairings can experience resonance.
The existence of resonance does not provide a universal test for every possible extraterrestrial pairing. Do not invent a cross-species resonance rule for an unrelated species whose biology has not been established.
Resonance never constitutes consent, a legal marriage, guaranteed pregnancy, or immediate romantic love. Characters retain the right to refuse intimacy and make their own decisions.
All male Sakh-descended variations possess the characteristic penile spur. This is an explicit biological rule of this campaign and applies to mainland sa-khui, Strong Arm, Tall Horn, Shadow Cat, Outcasts, and males with mixed Sakh ancestry.
The spur is natural anatomy near the base of the penis. It contributes stimulation during consensual mating; it is not a separate reproductive organ, magical adaptation, weapon, or product of the khui. It does not guarantee conception or control resonance.
Drakoni anatomy is distinct. Do not treat a Drakoni's ridged or textured anatomy or mating-bite behaviour as the same feature as the Sakh spur.
Female Sakh-descended individuals do not possess the male penile spur. Additional arms, long horns, and claws do not automatically produce additional reproductive organs.
A pregnant person retains their own anatomy while carrying a mixed-ancestry child. Human mothers do not acquire Sakh horns or tails, and island mothers do not lose their lineage-specific features.
Gestation, maternal symptoms, fetal growth, and childbirth can vary. A universal pregnancy length for every cross-lineage pairing has not been established. Do not assign precise gestation periods, litter sizes, or special birth mechanisms without a grounded reason.
The khui supports survival and recovery but does not remove the risks of miscarriage, difficult labour, infection, bleeding, or other complications. Pregnancy requires appropriate food, rest, protection, and care.
Children may resemble one parent more strongly or combine characteristics of both. Possible Sakh-associated features include horns, tails, skin colour, teeth, and other lineage-specific anatomy.
Four arms require a functional skeletal, muscular, and nervous arrangement. Claws and horns are physical structures that develop with the child's body. They are not decorative traits that appear or disappear on command.
No fixed dominant-gene chart or numerical inheritance probabilities are established. Once an individual child's anatomy is introduced, maintain continuity as they grow. A trait should not suddenly appear solely to solve a scene or grant an advantage.
Every newborn living in Not-Hoth's exposed atmosphere requires a functioning khui or equivalent effective protection. Children do not genetically inherit their parent's living symbiont.
A knowledgeable caregiver must arrange a suitable khui for the newborn. The organism is obtained from a sa-kohtsk and is introduced through a small neck incision, after which it settles near the heart. Infant care must be cautious and appropriate to the baby's condition.
Biological ancestry does not determine whether a child belongs to Croatoan, Icehome, or a particular family. Families may include biological parents, adoptive parents, relatives, and trusted caregivers.
A child of mixed ancestry is not automatically an Outcast. Outcast is a social history, not a genetic diagnosis. Differences in horns, arms, claws, or skin colour do not determine intelligence, personality, morality, or social worth.
Relationships and family bonds may exist without resonance or biological reproduction. A couple can raise children together without being genetically compatible.
Human–sa-khui reproduction is established; human–Sakh island pairings are compatible within this campaign.
Mainland and surviving Sakh-derived island lineages can produce mixed-ancestry children.
Outcast is a social designation, not a separate species.
Strong Arm, Tall Horn, and Shadow Cat traits are inherited, but no exact probabilities are established.
Long Tail is extinct as a distinct surviving clan unless deliberately changed in campaign lore.
Drakoni and unrelated extraterrestrial compatibility must not be assumed from attraction or shared khui.
The khui does not rewrite species genetics or guarantee conception.
Resonance does not remove consent, force love, or guarantee pregnancy.
All male Sakh-descended individuals, including mixed-ancestry males, possess the penile spur.
Drakoni reproductive anatomy is distinct from the Sakh penile spur.
Pregnant individuals retain their own inherited anatomy; gestation and childbirth can involve complications.
Children may inherit parental features in variable combinations, without guaranteed traits or invented gene percentages.
Every newborn requires its own khui or equivalent atmospheric protection.
Mixed ancestry is not automatically illness, disability, supernatural power, or Outcast status.
Children develop gradually and require age-appropriate care.