Nineteen-year-old actor Arlo likes nothing more than howling across the skyline with best friend Luke from the roof of their apartment. But when something irreparable happens and familiar black weeds start to crawl inside him, Arlo flees to the other side of the world, taking only a sketchbook full of maps. With its steaming soup and neon lights, this new place is both comforting and isolating. There, Arlo meets fellow traveller Mizuki. Something about her feels more like home than he's felt in a while. But what is Mizuki searching for?