Yurei Hodo becomes a movie! Unno, approached by manager Sugihata to investigate paranormal events at a client’s home, reluctantly joins Maya. At the meeting spot, they encounter aspiring 'spirit idols' Momoko Sakuramochi and Nono Tsukihikari. This unusual team embarks on a joint investigation, only to be drawn into unimaginable terror and the darkest, most complex case in Yurei Hodo history.
Basically, most Yōkai are peace-loving, harmless demons who rarely interfere with the human world, but do serve them well from time to time. OniKiri, however, are the fiends among the Yōkai, and they are currently wreaking havoc in Japan by plaguing the common people. Fortunately, Kiri, a horned Yōkai in human form, roams the countryside with her faithful Kasa-obake - a chatty umbrella with one eye - and catches the scent of the malevolent creatures. For to her, there is nothing more delicious than the lumpy essence of the oni.
When Hime was a child, her family's heirloom vase for sealing ghosts (evil spirits) was absorbed into her breasts in a minor accident. This transformed her into a big-breasted woman, and she became a ghost hunter who can absorb more ghosts. As an adult, she took the suction gun attached to her chest and started a company called Ghost Pitters with her partner, the one-goggle-wearing Fukuro, and began to exterminate ghosts. The two are asked to exterminate ghosts one after another, including Satako, the Slit-Mouthed Woman, and Hanako-san in the Toilet, but can they solve this difficult problem?