On once beautiful island there was a technogenic catastrophe, and now its kind half rolls in waste. A part of the population rummages in mountains of garbage, trying to discover copper, and a part tries to lead a habitual life. Dinki's schoolgirl mouse with friends dreams to run away from the hated island and hopes that her ex-boyfriend — the guy bird — will learn to fly well and will take away her to other place. And that disappears from hunters and struggles with the demon devouring him from within.