Kanjou o Nakushita Shoujo to Haibyouin Kara no Dasshutsu

When I woke up, I found myself in a hospital.
Why I'm in such place... I don't remember anything.
I shrike when I find an arm which is Skeletonized.
... No, it's just a normal arm. My head aches, I feel like
something important is missing from my memory...
Ah, I have to search... I have to search and find her...
... Who's she? But I have to find her anyway...
I open a door of a sickroom... After overwhelmed by intense light,
there appears a hospital turned into a ruined building...
I have no idea what is going on... But I have to find her.
She's only... Escape from her... The only hope.
I... I should protect her... Guess I'll soon find her
in a sickroom over that corner...

[From DLsite English]