 In Komomo's route, it is revealed that Kosame is in fact not properly human, but is an illusory dream of similar nature to Mare.Kosame died in an accident at the lookout during her childhood (explaining why the lookout is fenced off), prompting a grief-stricken Komomo to use her powers as a shrine maiden to give her new form as an illusory dream, using the shrine's sacred object, a meteorite, as her host object.Kosame is revealed to have attacked Mare in order to protect Suwa, and furthermore is the one who requested that Suwa be sent to Hibarigasaki, in order to eliminate Kosame herself.