Wow, this is an incredible work!
The art is amazing, both character designs and backgrounds (let's not even talk about the CGs). The music is also incredible, as well as the writting.
I really like these kind of stories, and it being ambientated in a royalty setting just makes you doubt everyone! The options were really well thought, as well as the different paths. Heck, I love multiple options games, and this one has lots of them, I really enjoyed just picking different ones to see their outcomes.
I got 3 endings, in the following order: The Angel of Death, the True Ending, and just for checking, Blood Sacrifice ending.
I do wonder about the others tho! Tried to get more but didn't quite got them just yet!