riddle - Your not so normal 'Who am I?'

This Who am I? Is a little more in depth, with a few puzzles to solve to get to the final answer. First let's start off with a short story riddle. From the story you should get two answers. One is 5 letters, the other 6.

An old man wanted to leave all of his money to one of his three sons, but he didn't know which one he should give it to. He gave each of them a few coins and said buy something that would fill their living room. The first son bought straw, but there was not enough to fill the room. The second son bought some sticks, but they still did not fill the room. The third son bought two things that filled the room, so he obtained his father's fortune.

What did he buy?

Next up is this simple old-timer. You may have to open it up to read it all. EDITED: APPARENTLY WORD DEATH GOT DROPPED - SORRY. (Yes it's paint..)

As you may notice, the answers you got from the story are inside here. Now if you look at those two specifically, and you figure out what's important about them together, you'll find two possible keys. The one you care about is the one that is not this puzzle.

And now for a puzzle type I have started to learn, albeit not on this scale. There is something important you will want from this one too. (No the weird 13 is not important, it's just a editing mishap I promise).

Now, if you have everything you need this part should be a piece of cake.

Text: Kt lhu tbsb kb gae ovzvp rvkekgmfp mbn wqyp wkbq fe

And with that I ask, who am I?

Answer

You are

The sky

The crossword was solved by MikeQ, after my partial. Here is the solution:

The solution to the nonogram:

Quite clearly says

'UP'

Though there is a mistake in the row '2 1 1' which should be '2 2 1'

Here is a step by step:

Grey represents an empty square, and black indicates a filled square.

STEP 1: The Defo Nos

The first step is to fill in all the squares grey which definitely aren't filled in:

STEP 2: Mid Grid

Now fill in the squares which are included in all possible solutions for a row/column. As there aren't any high numbers in the rows, then we look at the columns:

STEP 3: The Rows Know the Row Knows

After checking the columns, a lot of the rows are very nearly complete. We can fill in a few blacks and a lot of greys:

STEP 4: Number of squares left diminish as we come to a finish

From here it is plain sailing. We get the final answer (mistake highlighted in red)

So:

match and candle have the shared letter C in the crossword. There are two words beginning with C: Crossword and Container. We are told that the one we want isn't the one that is the puzzle. The puzzle is a crossword so we want Container.

Applying the keyword

CONTAINER

to the cipher gives:

!If you look in the given direction you will find me

The direction given by the nonogram is

UP

and the

sky is up, so you are the sky