"Sensor Type (From Observation)" is not in the list (ANBU, Celestial Beast, Chakravartin, Cooking-nin, Cyborg, Daimyō, Heavenly Sovereign, Hunter-nin, Jinchūriki, Legendary Creature, ...) of allowed values for the "Classification" property. Sensor Type (From Observation)
Fukitsu (不吉, Fukitsu) is an obscure figure in the Shinobi world. While his origins are a mystery, he appeared to scour out individuals for his cause, eventually narrowing down to the current band of the Winged Mirages: Zenjou, Kazuhide and Mukūrō. His intentions appear to be for the benefit of humanity, but even to the trio of — rather powerful and intelligent — Shinobi, his existence remains nothing more than a fleeting enigma that they only trust due to their own motivations.