I saw this while browsing /jp/ and thought that perhaps I could try to use a similar style for the game. I think it's pretty cute. Hopefully I'll find more pictures with this style for reference. I've practiced drawing a bit, so I believe I can manage something like this with time and effort. Once I've some more drawings, I'll try to convert the style into sprite form.
Edit: The style has since been confirmed. See later updates for details.
