Hanahaki From Hell (Steddie + Ronance)

After their encounter with the upside down, Robin and Steve have been inflicted with a grotesque form of Hanahaki disease.

Eddie and Nancy do their best to help them through their illness. Little do they know they're the cure.

Now, Steve and Robin have to go through one hell of an emotional journey to save their lives.

(Taking place after all the action of season 4, V2 isn't out yet so we'll just say everyone lived and the world is saved. Also almost no mention of the California party.)