Randoseru(Backpack) & Moral

There is a container function to protect an inner package in one of the characteristics of the Randoseru.
The core material currently put in the backboard differs in the quality of the material by the rank of each maker and a Randoseru.
The Deformation prevention structure of a container changes with ranks of each maker and a Randoseru.

The Deformation prevention structure

Lining of a container has a difference by the rank of a Randoseru with each maker.
It is not rubbed or torn even if a user puts in an intension thing confusedly.

A Randoseru expects that a schoolchild will take good care of a thing.