The Trials of Lena River Boarding School

"No one knew when the letters would arrive. Or maybe people just forgot. Because when the red envelopes started appearing in various mailboxes, no one was prepared. Especially not the children.
30 letters, 30 victims. No way to fight back. The government would not allow it. Or rather governments. It is horrifying to see how easy they united over dooming 30 innocent children. Yes, they justified it by saying that this was the only way to lower the number of victims claimed by the monsters."

When 30 children have to face off against a group of notorious killers things are bound to get ugly. Watch as horror turns to determination. But is their will to live strong enough to help them survive the terror of Jeff, Laughing Jack and Co.? Class is about to begin.