Humans are an intelligent species that come in two sexes, male and female. They are bipedal beings with a bilateral symmetry, having a front and a back end, as well as an upside and downside. Their bodies are comprised of a torso with a head and four limbs attached to it. The upper limbs, or arms, end in hands which have five fingers each; the lower ones, called legs, end in feet. The human fingers have multiple points of articulation, and one of them is an opposable thumb that allows for fine manipulation. Finally, they have one head perched atop their torso.
Humans appear to be almost entirely genetically opposite to Saya's species.