Limit drama: episode 3 screenshots and recap

Nanami Sakuraba as Mizuki Konno, one of the elites.
Ayano Kudo as Haru Ichinose, the other elite.
Tao Tsuchiya as Chieko Kamiya, a loner who is the class brain.
Yuka Masuda as Chikage Usui, not sure of her status but doesn't like any of the survivors, another loner.
Rio Yamashita as Arisa Morishige, the class outcast.

 Episode two ended with it looking like Arisa was about to put Chikage six feet under for making too many mistakes such as letting their fire go out and spilling her water. However it's too early for a main character to die so she took some punishment and perhaps it could have been worse except the other girls had returned from a searching trip and helped put an end to the beating. They were searching for water and found some but it's undrinkable except it appears Chieko knows a way to purify it, she seems to have her head on straight much more than the others, won't happen because she doesn't have the sickle but she would make a fine leader to help the get rescued.
 As far as getting rescued goes the girls think it should be at any time but many snafus have happened and their getting saved probably won't be for a while. The owner of the bus company has found out about the bus disappearing, instead of helping he's doing the opposite as he's shredding all the papers of the company and about to flee as his company is the guilty party as far as the accident goes. Also the teacher at school who had a cold but couldn't go, Igarashi, near the end of the episode has found out about the bus disappearing, he tells this to the principal and is about to call the police when the principal for no reason stops him from doing that, we don't know why until the next episode.
 As far as our survivors go another episode of fighting among each and trying to survive, even though they need to depend upon each other seems the opposite is happening, self survival is starting to take control of them. However we end on a thrilling cliffhanger as the girls are at the creek they found to bring water back to their cave when they discover what appears to be one of their class books.... is there a 6th survivor?
 Answer to that is hopefully coming up in the next post for this series which is just below this, it was a really unexpected turn of events to think there may be one more of them and if so why have they remained hidden?