The tragedy of the Saeki family is like a vicious circle that can never be escaped after suffering the most vicious curse. All those who accidentally establish contact with it are drawn into a vortex of death and terror. The young teacher Yui Ikuno (Nozomi Sasaki) received a temporary notice to replace a teacher who suddenly resigned as the head teacher of a third-grade class. Because the child in the class, Toshio Saeki (Kobayashi Sa) was absent from class for a long time, she visited after get off work, but saw the dazed and gloomy hostess Kayako (Misaki Saisho), and she was thus entangled in bad luck. The daring high school girls Rina, Aoi, and Yayoi (Kuroshima Yuina) forcibly dragged the timid girl Nanami (Trindl Rena) into the legendary haunted Saeki family for adventure, and they were destined to pay a painful price for this. The power of the curse is like a shadow, difficult to eliminate, and everyone can only pray for good luck...