Wow, I have to say I was impressed by this game!
First of all, it was very gorgeous-looking: the art and the GUI were both amazing. The music too was very fitting and appropriate for the ambience!
I also have to say, the story was EXCELLENT. The haikus leading the game were an excellent idea, and the progressive build-up to the final revelation and the final twists was really great. While the relationship between Sheol and the "protagonist" is easily understood, the final outcome was clearly unexpected, but made a lot of sense in terms of how the game is built, and it really was a dramatic, heartbreaking moment.
Great job to all the team! I'm impressed it was an O2A2 entry, it felt so rich! Congrats!!