For just 4 chapters, its...a lot. Like, a lot lot. The story is very good, feels a bit "cramped" or "too close together", but thats just because its short. I really wasnt expecting the ending, that was a real plot twist right there, but it made complete sense. I do gotta say, the story was pretty confusing basically right until the end, like in order to understand this manga, you need to complete it fully - which, honestly doesnt take too long, maybe like a 20ish min read. [sorta spoilers ahead] Theres not many characters, which is honestly something I appreciate. The main characters, Aoi and Ai, bothcan see the "supernatural", or, the ghosts, the dead bodies, whatever...; and ultimately you find out that theyre both insane and crazy.