Wow, wow, wow! This is such a good story! The mix between Fungus and Twine, the audio cues, the animated words- all of that came together to make for an amazing reading experience. You took what what I assumed to be two different works and used that as a springboard to tell your own original story and it works so well. I was glued to my seat- I couldn't stop reading. I'm glad Izanagi and Izanami (I won't post spoilers here) worked everything out and destroyed a cursed artifact before it wreaked more havoc.
As an aside I kept thinking this would tie into Homestuck because of your cover image. I never read Homestuck, I only know of the trolls, but I felt like this was Homestuck inspired.
My only criticism for this piece would be to go back and do a final proofread check- I spotted some grammatical errors. Also I think when Izanami says "I", the highlighted words turn up black? Or a really dark font color, so it looks like a missing word space in the Fungus dialogue box.
Great work!
-Christine