to this chapter, I hoped that the Ruu was real..I had a theory that a zombie who was killed by Kurumi, and found a letter on him was one of the last survivors with Ruu..that would explain how she survived, he was taking care of her..in the period when Kurumi and crew escaped from their school that guy got infected and it was his last attempt to save the girl, or perhaps more of them..because the letter said we have food and water..plural..and maybe the author just wonts to blur the eyes of readers,like yee megunee was not real lets make it so that ruu is not real but she actually its..let confuse them,make them wonder..