kotaribako' is a trick box for children which requires solving a puzzle to open.
In a small village long ago the leader discovered a beautifully designed kotoribako. his fellow villagers were eager to see and open the box ,but the puzzle was too difficult to open . those who had come into contact with the box suddenly became violently ill and eventually perished. in order to prevent the horror from spreading,the village leader ordered the box to be hidden away in a shrine and it was remains unsolved.....