The Bloodstained Tissue is an active item found in Momodora: Reverie Under the Moonlight.
When used, eight spheres identical to the spheres Archpriestess Choir uses during her second phase appear and revolve counterclockwise around and slowly drift outwards from the priestess; then they gain a trail, begin to drift inward, and start revolving faster; after moving inward to a certain point, they quickly move outward and offscreen. The spheres only deal damage while they have the trail.
This can be acquired by defeating Archpriestess Choir without getting hit.
Bloodstained Tissue