Sputum: In the saliva-saturated Sputum world, an ugly class struggle is unfolding. The ruling Antique FAMLY depend on the saliva of the Bakelites to survive an invisible, buzzing, fungus cloud. With invasive, saliva milking machines and an addictive rot powder, their FAMLY enforces a status quo. But when the Bakelite rebellion led by Jimin Blyth gets help from aristocratic Antique deserter Kalta Crux, their future takes a new turn.