The Oono Children are the children of the Oono family that were murdered by Numazawa.
Nothing is currently known about their personality, but they cared about their parents enough to try to escape with them.
Nothing is known about their appearance,but according to their remains, one of them wore black pants and white shoes, while the other one wore a black shoes with white at the tip and back, and a cup.
During the beginning of the Era of Chaos, they, along with their family, headed to Yamatoyama City to try to escape the goblins' attacks. On their way there, they were captured by Numazawa and his group. Days later they tried to escape, but were eventually found and killed by Numazawa.
Their bodies, along with their family's bodies, where found by Teppei. Teppei then burned their remains. The next day Teppei learned about him, and his family's, attempt to escape, and that Numazawa was the one who had killed them.
- Father: They cared about their father enough to try to escape from Numazawa and his group.
- Mother: They cared about their mother enough to try to escape from Numazawa and his group.
- Numazawa: They were enslaved along with their parents by Numazawa. Like the rest of the group, they most likely hated Numazawa and even tried to escape from his control.