Stuck on the Morin hotel's eighth floor, Denji and the group are forced to devise a plan to stop the Devil that's causing the time warp. They get an answer when the Devil speaks to them, asking for Denji's life in exchange for freedom.
Denji and Tokyo Special Division 4 members enter a hotel to collect a piece of the Gun Devil. However, they end up being trapped on the 8th floor due to the devil's extraordinary power. With the members being cornered on the endless 8th floor with seemingly no way to escape, the devil makes them an offer: "If you let me eat Denji, I will let all of the other devil hunters leave in one piece."