Quite surprised to see a visual novel within this list of submissions, but I can't say that it doesn't work! The story extends the theme to heart, wondering about the aftereffects of the storm (explosion) and how people respond to them if they survived. I really love the detail given to the alternative endings, especially the one for wandering in the school to meet the ghost. That might have moved me emotionally more than the main story.
That being said, the three things that I took issue with are the lack of highlighting characters in dialogue scenes, the lack of soundtrack shifting, and the abundant use of lyric tracks. The most prominent example of this was in the second chapter when Eishin meets the three girls in the bunker, where he was talking with all three. The three shared their names, but I was very confused as to who was who until very later on because no one was in focus in the scene. The constant lyric track in the background didn't help my focus on reading the story, with it often interfering my reading and not matching the tone of the instantaneous moment.
There were also spelling and tense mistakes, but, as a fellow writer, I know that to be a comparatively pedantic error to point out.