The Shiranui (不知火 Shiranui lit. "Phosphorescent Light") is a device invented by Akari Tsukimura with Sennin's help and the ingredient already in Takeru Tenkuji's computer, which Ryu Tenkuji presumably had implanted in. It works by spraying golden dust in a certain area, allowing ghost-like creatures such as the , or other phantasm-like creatures to be visible within human eyes. Akari uses a modified leafblower to spread the Shiranui dust by attaching a cartridge of Shiranui powder into a slot near the fan motor to disperse it. Bullseye! Bow and Arrow of Justice!