Raido spent middle-school isolated due to his unintentionally unfriendly appearance, and hopes that high school will be different. He decides the first step to being more social will be to get to know Aharen Reina, the girl who sits next to him. She seems distant at first, then a little too close, and before long Raido comes to understand that Aharen has more than a little trouble at gauging the distance between herself and others--in more ways than one.
The span of time before we had written 
accounts of history is called prehistory.
تسمّى الفترة الزّمنيّة الّتي سبقت روايات 
.التّاريخِ المكتوب عصورَ ما قبل التّاريخ
Die Zeit, aus der es keine
schriftlichen Überlieferungen gibt,
La prehistoria 
es el período de tiempo…
La prehistoria 
es el período de tiempo…
Avant l’apparition
de l’histoire documentée…
Le epoche antiche, precedenti 
alla comparsa della scrittura
O período da história antes de termos
registros escritos é chamado de "pré-história".
Период до изобретения письменности,