Wasn't there suppose to be two immortal chics? And, what's the deal with the skull?
When the first girl woke the other, that skull was her friend that they gained "eternity" with. Then however many years later the skull you see is of that girl. They have pretty much swapped roles. Now these new people who have just found her will probably be the next to sleep there for a couple hundred years and keep they cycle going.
Seeing a lot of comments on a lot of things recently of "crappy story" or "cliche" and so forth, when did the comments start becoming so high and mighty. just enjoy the yuri, jesus.