Teori Tadatsuru

An expert in immortal apparitions, known by the nickname "Puppeteer." Appears in "Yotsugi Doll" and "Mayoi Hell."

A man of small and delicate stature. Unlike Yosetsu, he specializes in immortal apparitions out of personal grudge. A stray not belonging to Izuko Gaen's network, he harbors an aesthetic curiosity towards immortal apparitions. Prefers using origami such as paper cranes and yakko-san during his work. Tired of being manipulated by someone else's will, he died by his own will through Yosetsu's "exception rather than the rule."

In "Mayoi Hell," it was revealed that the human Tadatsuru had already died previously. After leaving Gaen's network, he created several dolls to serve as vessels for his soul and transformed himself into an apparition. According to him, he travels between this world and the afterlife, living a carefree life, but according to Koyomi's speculation, there seem to be some restrictions.