Candidus Arrow was present when first contact was initially made with the Homo Insipiens of Earth, and after having earned their Genetic Engineering Doctorate from The Institute of Quark State they have joined the expedition to return and bring the venture full circle. As a senior expert in their field at the Heart of the Nebula Hospital, Candidus dropped their post without delay upon learning of the Critical Earth Expedition. With the Critical Earth Expedition underway, Candidus will do what they can for the sake of captive Earth's primates.