In the English language manga, the same thing happens,although at one point Ryuhei and Hiroshi got together and found Izumi Kanai and took her hostage. When they arrived at the location they wanted to start things off by raping Izumi but left the choice up to Kazuo who flipped a coin to decide rather to take part with them or play the game. The coin ended up on tails, which meant Kazuo was going to play the game and he killed all 3 of them.