The first three volumes are truly spectacular! Creating the necessary tension, you really get into the protagonists' shoes, understanding their fears and madness, not being able to tell what is real or illusion! However, when they leave the subway, the story shifts into something else, practically an action manga, which doesn’t match the beginning—lots of teenagers who seem trained by the army. The final part returns to the initial tension, but the author didn’t know where to take the story, and the ending is honestly a solid 5 out of 10! Also worth mentioning are the duo Teru and Ako, who truly function as partnersand are the thread that kept me wanting to read until the end! Several plot points are thrown in at the end to make some sense, but as mentioned, the author got pretty lost here. I only recommend this if you want to read a 90s manga that was a precursor to many other works and has its value, but for me, it only worked well during the first three volumes.