According to the author AlceX this is a puzzle game, “like in the Professor Layton Series”.

Release notes:

Oops, thanks for noticing that mistake.
I do use Paint.NET.
I fixed what you said, a bug, and did some grammatical changes. Anyway, you didn’t say if you liked it or you managed to solve the puzzle. Here’s V2, and unless somebody gives me the background I need it will be the final version.