Ramune uses his Shoji Vision to invite Kuro to a mysterious item shop. Kuro discovers the mysterious item shop Akatsuki at his destination. At first glance, the store appears to be a candy shop, but mysterious items are sold in the back. Kuro meets shopkeeper Nico and his great-grandmother and former shopkeeper Ayame, a girl who remembers her past lives, and is watching her make mysterious items with great interest when a strange man appears.
He uses echos to determine the position 
and distance of objects around him.
.يستعين بالصّدى لتحديد مكان ومسافة الأشياء من حوله
Usa l'eco per determinare la posizione 
e la distanza degli oggetti attorno a lui.
Ele usa o eco pra saber a posição
e distância das coisas ao seu redor.
С помощью отражённого звука
определяет положение предметов.