For other uses of Hinohara, see Hinohara (disambiguation).
Nao Hinohara (日ノ原 仍, Hinohara Nao) is the younger sister of Arata Hinohara.
She wears a middle school uniform.
She is described as kind and reliable. Looking after her brother, and worries overtime, whenever told that Arata Hinohara is being bullied. She sees her brother as someone full of justice.
Arata: Initially like everyone else in Japan, Nao thinks Arata is her brother who's suffering from amnesia, in spite notice of change in his personality remarking that he wants to go "hunting". After Arata saves her from Harunawa, Nao discovers Arata is not her brother. At that point, she protects Arata in place of her brother.
Imina Oribe: Nao and Imina get acquaintance after the incident with Harunawa. The duo become comrades, to time to time in helping prevent conflicts cause by Harunawa.