As soon as Leon loses consciousness, all the soldiers quickly lift him and transfer him to the doctor's van. However, they are unaware that someone is standing on the roof of the research lab building, watching Leon from above—it is Rial.
Rial had entered the research lab a while ago and was the one who released those zombies. Some of the zombies had already turned, while others were still in the process.
Rial's true purpose for being there was to search for Zero's body, but unfortunately, he couldn't find it anywhere. So, he stayed hidden there, thinking that keeping an eye on Leon might lead him to Zero's body.
Meanwhile, the soldiers who had suddenly disappeared from in front of the scientists were all alive and safe. They had just been imprisoned with the other survivors.
By the time Keroli wakes up, he notices it has already gotten dark outside, and the rain had stopped long ago.
