The Mystery of the White Portion

Looking at your map, I see you've uncovered the secrets behind the green and red portions of the map.\nYou seem to have only the white remaining. Am I correct? Ha! This mission seems way too easy.

Of course, it's only if I'm not mistaken, that is. But this map, the more I look at it, is poorly drawn!\n\nAnyway, you must bring me some items in order for me to uncover the last secret of this map.

If you go to 103010000, you will see a yellow barricade where you will find portals that will lead you to different places. They're called Hidden Streets, and they're all over Maple World, so keep a close eye on them.

Weren't YOU the one that was curious?

Ah, you've finished collecting the Ink.\n\nLet me make you what you need. It will only take a few seconds.

I can tell you now.\n\nI'm not removing the white, but I'm spraying black to trace the lines to make out what's hiding underneath.