(Disclaimer: I don't know what itch.io comment etiquette is/if I'm not supposed to comment on old games)
I absolutely adore this, on several different levels. First off is the experience itself; you've done a wonderful job of capturing the calming effect and simple satisfaction of organizing one's inventory in an RPG. Secondly is the art style-- the pixel art is charming, and at just the right level of detail: not so simple I can't tell what I'm looking at, but not overly complex. Third, and perhaps most impressive, is that I can easily imagine the nonexistent RPG this inventory system belongs to-- the gameplay systems, the crafting mechanics, the overall tone of the story.
9.5/10, with 0.5 of a point off because moving things more than one bag at a time is finicky