Ena Hoshijiro

Constructed by the Gauna using the fallen pilot Hoshijiro Shizuka as a biological template, this entity shares her appearance while retaining only scattered memory fragments. Recovered by Tanikaze and brought aboard Sidonia, she became a pivotal research subject for xenobiology studies, exhibiting faint but perceptible emotional responses toward him. Later exploited covertly by Ochiai as a living incubator, she gave rise to Tsumugi Shiraui—a unprecedented hybrid existence bridging humanity and the Gauna.