Maplestory: Jump!

... that's... not what he meant...

He meant they're laid out as they are in the WZ files as in they're not randomly placed. It goes 1 2 3 4 5 rather than 1 4 3 2 5 or something obscure like that.

Again, I'm aware that they're enumerated in the WZ files because to not be would be a ludicrous way to program things.
However, that does not reflect the layout in the image.

Ignoring the fact that the picture shows two 5's, the rest are only "in order" if you happen to count them in a certain way.
I can't read Korean, but, judging from the numbers, I'm going to say that the text at the top indicates that the warrior patch is in March (3), the Mage patch in April (4), and the Archer patch in May (5).
Meanwhile, the characters are not lined up with their patch, indicating that the pattern is not significant.

Even if it were, Korean is a left to right culture, so there's no reason to start at the right-most character when you count them.

What's more, if you're going to count them based on how the picture is laid out, the first thing to draw the viewer's eye is the mage, making the order of attention:

Code:

4   5
2       3
    1

or even

Code:

3   5
2       4
    1

My point simply is that trying to read into the picture too far is nonsensical.