Alyssa was sleeping one night, until she was not, and then it was (probably) no longer night. Or anywhere she contained recollection of. Nor did she have many things that most people had. A body, for example. So, how could she see, think, hear, and whatever else it is that normal people do? Because she''''s a dungeon core? Well, obviously. Not only that, but she is apparently the first ever one! Which sounds impressive, but it soon becomes apparent that this world is about to have an abundance of firsts, around 7-8 billion of them, if her suspicions are proven correct.