Unofficial Walkthrough made by myself. (clear 100%)
I hope this will help anybody who stuck somewhere in the game or pain in ass about puzzle Before read this walkthrough I recommend you to try by yourselves first, it's more fun than read all way through and solved puzzle. This game is not that hard (in my opinion it is easy). Quests and story are almost straight so if you cannot solved some thing in any floor just try to go to other floor or other area the unexplored there is always only a way to go on so there is no way to confuse about how to go further.