The Charon humanoid is an unidentified non-human species, represented by a single set of remains recovered from a subsurface facility on Pluto by Tsiolkovsky’s landing party in 2131. The remains are described as a tall, slender humanoid with pale grey-white skin, no hair, no external ears, no visible mouth, and no genitalia. Nostrils and enlarged, fully black, pupil-less eyes — roughly two to three times the size of a human eye — are the only clearly defined facial features. No cause of death or estimated time since expiration has been released. The species’ technology includes a gravitational-calibration structure in Charon’s orbit, surface and subsurface facilities, and spacecraft whose debris comprises the moons Styx and Kerberos. The architectural character is consistent across sites: unlit interiors, seamless surfaces, and a complete absence of recognizable controls, displays, or instrumentation.