Wow, the thriller concept of calling lucky numbers to piece together clues is really unique!
Just a gentle piece of feedback, though. I think it would have been even better if the UI art style was unified into one consistent look. For instance, standard 2D icons were used inside, while the book is pixel art, and the close button felt like its pixel resolution didn't quite match.
Even so, I definitely enjoyed the game! I especially loved how original the collage style ransom notes were.