Just a quick note for those who might not already know: When written vertically like this, Japanese is read from right to left, so make sure to read the sections in that order.
Also, though it might seem strange to use 'she' right from the very start, there is a valid reason for my choosing to do so.
Transcription:
ある朝目が覚めて、彼女は
自分が何か大切なものを
忘れてしまったことに気付いた
忘れた何かが何なのかも
わからないまま
それを探すために、彼女は
家を飛び出したWhen she awoke one morning, she realized that there was something important that she had forgotten.What it was she had forgotten, she did not know, and so, in order to search for it, sherushed out of the house