Naruburaidoficha

Walkthrough:
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-get the blue, red and green books from the bookshelf.
-move the books at the middle shelf and get a paper behind the books.
-get the yellow key from the bottom drawer.
-get the blue key behind the drawers.
-use both keys on the purple box and get the screwdriver.
-move the chair and click under the desk.
-take a black key from the long drawer of the desk.
-use screwdriver on the plug in.
-get the red key.
-open the right side of the bookshelf and get a gray book.
-about item all the books, except the gray one, and see the numbers:
 red 7
 blue 5
 green 4
-open the door with the red key and get a green key.
-open the top drawer with the green key and get a white key.
-use the white key on the top drawer of the desk and get the match box.
-about item the match box and empty the matches in it.
-open the bottom drawer of the desk and click in it. get the torch.
-click under the bookshelf and use the torch to have a pencil.
-write on the gray book with the pencil and see the numbers:
 +3
 -2
 -1
 5+3=8 (blue)
 4-2=2 (green)
 7-1=6 (red)
-the code for the safe is 826. enter the number and use black key.
-get the oil in it.
-use oil on the window and escape.