YUSB wants us to consider our own existence, present and future, with Black Nature. Using photography as an object and matter as a photographed object.

YUSB experiments this concept using binchotan, Kuro-zumi.

Using original pieces acquired in Tokio and Kioto, photographing them so as to perpetuate them in the memory of time. Finally they end up ground to fine dust contained in a small jar as a suggestion of its eternity.