Hyakki Yagyou

Ten people, ten stories.
All members of a mysterious untraceable internet website, a forum where they can share all their thoughts and ideas without ever being tracked down. Strangers and friends, at the same time.
But when one member, a young girl, commits suicide under strange circumstances and a rumor of the website's existence starts circulating, all eyes are set on finding the rest of the members. The center of the story is a girl named Ishihara Emi and the brother from whom she is estranged, Ishihara Keita.
She a hacker and he a photographer/voyeur. After their father's death, the two meet each other after eight years, planning to move on with their lives after the funeral but fate decides they should not be separated again... Not yet. All of the members' secrets slowly start to surface and with them a sinister force, a dark force that is after them all. It wants their lives. Will it get it? How can it be stopped? If that is even possible.
Clock is ticking and slowly they start dropping like flies.