This is the story of how you were brainwashed, and woke up in a place you have never seen before. All you know is, you have to escape wherever you are.
For a first custom story, this one is a good start.
The water needs improvement, there are torches floating beneath the walls in a weird orientation and there is no atmosphere, no music, no sounds.
The small pieces of story told by the notes are a good start and they have a lot of potential to make a story.
However, some parts do not make that much sense and even though the advertising said "Working Key Names", the update i added and played did not fulfill that promise.
Keep it up, go on and improve your custom story as you go.
I am sure it will get a lot better. ;)