oml look at the nerve on your face...
You probably might want to type it entirely in Korean and come back. MrDrNose isn't all that good at English either but he's getting there. Also if Google Translate doesn't suffice maybe some people at Discord can do it.
Also if you want items, they're everywhere. And once you get good at AEWVS, you won't need a store for that. There are thirteen muffins in the Math Level alone already.
There's also "NUTS" graphics, test maps and hints. I don't think breaking the store out of the meta and putting it in the storyline would make really any sense. Get an earlier 0.15 version, buy lots of keys (they were sold at negative price), go back to the latest version, buy everything in the Store and you'll see what I mean. Have a look at the hints and the test maps. There are some memes and random object placements, and the game's immersion will be completely gone.
Oh and this is an indie game. Don't make too many suggestions that heavily influence the storyline. Mine was meant to influence it as lightly as I could BTW. Features alone are generally more accepted.