8.1 Yamada Yuusuke Gekijou
From Mangaupdates: There is a mysterious group of people who cause people cruel and fatal games for their own pleasure. Tatsuya and Misa prescribe a date in the amusement park, when they go to one of these terrible competitions at the highest American hills in the world. The seats fall from their car on the American slide on 12 people, and they say that the game will end when all people except one fall to death. Will passengers find a way to avoid competition? Will any retribution against the organizers of this painful crime?