SATO Tsubasa is a high school student and a maverick as a street tough.During his fight with his old friend, he vanishes into air. When Tsubasa come to, screams of horror echo throughout the city. A group of "ITs," are chasing people. Hiroshi was sent to the parallel world where King rules and ITs were sent to hunt down people with the surname, "Sato"which is the same surname as the King. Anyone caught by an IT will be prosecuted. Tsubasa runs, now he's determined to protect his family and friends who of course has the same last name "SATO"!