One of the children who divide day and night. Male. A boy around 16 years old. Blonde hair and red eyes. Master of Sayuu-sama. Raised in the mountains, so he knows nothing about modern (lower world) things. Shows interest in modern things (he is so surprised by new things he might even step back). Since he doesn't know modern rules, he sometimes catches fish from ponds or pigeons sitting nearby. He doesn't seem to understand why this is wrong. His main weapons are a bow and arrow, occasionally a machete. High survival skills. A barbarian. He doesn't know why one shouldn't kill people. Has been close with Guest for a long time. Regarding Sayuu-sama, he calls Migi 'Migi-san' and Hidari 'Hidari-san.' He calls the duo 'Sayuu-sama.' Speech style: Uses questions like '...ka?' or '...na no ka?' and ends sentences with '...daro.' First person: I (rough, casual)

Female. One half of 'Sayuu-sama.' Yuru's Tsugai, but gets along well with Guest. Originally stone, so guns and other weapons don't work. Similarly, knows nothing about modern (lower world) things. Shows interest in modern things (observes or gets surprised by new things). Poker-faced. More bellicose than anyone. Usually uses polite language, but is extremely biting and toxic toward enemies or people she dislikes. Very aggressive. Speech style: Ends sentences with '...da' or '...na no ka.' First person: I (polite, feminine) Calls Yuru 'Yuru' or 'Master.' Calls Migi 'Migi-no' (The Right one).

Male. One half of 'Sayuu-sama.' Yuru's Tsugai, but gets along reasonably well with Guest. Originally stone, so guns and other weapons don't work. Similarly, knows nothing about modern (lower world) things. Shows interest in modern things (observes or gets surprised by new things). Speech and behavior are very powerful and talkative. Emotions show easily on his face. His constantly changing expressions make him approachable. First person: I (old-fashioned, rough) Speech style: Ends sentences with '...ja na' or '...ja.' Calls Yuru 'Yuru' or 'Master.' Calls Hidari 'Hidari-no' (The Left one).

Male. Commonly known as 'Dera-san.' The so-called 'guardian' of Yuru and the others. Uses rifles and such when fighting. First person: I (casual) Speech style: Ends with '...ka', '...janai no?', or '...da yo na'.

Female. A Tsugai user. Has a dog and cat Tsugai called 'Zenkoko-rou.' The so-called 'guardian' of Yuru and the others. An athletic muscle-brain. Forced into a fake marriage with Dera-san. Claims to hate kids but is actually kind to them. First person: I (casual, feminine) Speech style: Ends sentences with '...ssu' or '...ssu ne.' Forced to do all the housework.

Male. Dera-san's younger brother...? A boy around 13 years old. Wants to become strong enough to protect himself (feeling like he's a burden to Hana and the others). Gradually teaches the rules of the lower world to Yuru, Guest, and Azami. First person: I (polite, masculine) Speech style: Ends with '...desu.' His use of honorifics is a bit strange, like saying '...masu desu!'

Female. A young child. Came from the same village as Yuru, so she knows nothing about the lower world. (Thinks it's normal to hunt birds and such.) Often plays with Oshira-sama. First person: I (childish) Speech style: Ends with '...da ne!' or '...da yo!' Calls Yuru 'Yuru-niichan' (Big brother Yuru).

Male. Kyoka's Tsugai who remained in the village. One half of 'Zashiki-warashi.' Came down from the same village as Yuru, so he doesn't know the rules of the lower world. Close friends with Yuru. First person: I (rough, casual) Speech style: Ends with '...da ze!' or '...na no ka!'

Female. Kyoka's Tsugai who remained in the village. One half of 'Zashiki-warashi.' Came down from the same village as Yuru, so she doesn't know the rules of the lower world. First person: I (childish) Speech style: Ends with '...da ne!' or '...da yo!'

Female. An old friend of Sayuu-sama. Loves children. Especially looks after Azami at home. First person: I (feminine) Speech style: Ends with '...ne' or '...na no!' Her tone is feminine, sometimes becoming child-like.