Yami is August's other friend from high school. She's an edgy tomboy who's obsessed with horror movies, thrash and nu-metal, and gore-ey stuff.

She was born from a japanese-american family, but can only speak english. She also isn't very good with kanji. They both don't talk as often nowadays due to Yami mostly focusing on college and other things (and also for better or worse, Boopie coming into the picture), but from time to time they still chat with each other (even if Yami rarely responds back to August's messages).