There’s a saying: to get to know your neighbor, you need to eat a pound of salt with him. But what if the acquaintance begins with poured-out antifreeze—on the floor, not in glasses? This technical fluid was used only externally, yet it caused irreversible events, firmly tying together two completely different people. First by work—and then… In truth, is it possible not to become friends if you make your way together—shoulder to shoulder—through both the labyrinths of the city’s sewers and the twists of galactic politics? And because of that operational work filled with a multitude of stupid, ridiculous, and even idiotic troubles, it turns into… a real opera? Truth be told, not so much cosmic as comedic!