Some things worth noting:
Actions
This CYOA is structured primarily like a text adventure game, and there will never be preset options to select from. However, while any action is technically acceptable as input, impossible actions will simply fail, which includes most things that are patently absurd. I'm not attempting to discourage experimentation, but repeatedly making poor moves will likely produce adverse effects.
For now, I'll execute whatever gets posted first, but will change to a more structured voting system as time goes on.
Difficulty
This isn't an easy game. While it isn't guaranteed, there is an extremely high chance that you will die, especially as time in the story progresses. Although the difficulty is high, this CYOA does implement an auto-save feature, that is so advanced that it will never reload you into a position where you are guaranteed to die. There is no manual save option, though, so you may end up in a difficult situation. For this reason, it would be wise to make decisions with care.
In General
As you discover new parts of the CYOA and mechanics, tutorials will pop up. If you have questions, whether they're about mechanics or requests for more detail about the current scenario, feel free to ask. Answers not guaranteed.
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"But...her voice when she's in pain is pretty adorable, you know?"
-Saya, Saya no Uta