Oooooh. There is supposed to be a window color actually, and the font is usually white. Thanks for the screenshot! That's definitely a bug. Could I trouble you for your OS and browser? I'm also going to upload a downloadable version for the post-jam version at some point. After my other friends got some loading issues I figured I should have both available.
As for the writing, I definitely could've made it more intuitive, and I plan to on the post-jam edition once I have more time. The intent was that Harold is trying to run away from MZ, and is somewhat self aware, so game "story" becomes trivial to him.
Thanks TuomoL!