The perverted Spittoon series returns with extreme intensity, set in an SM club! This time, a male masochist visits after hearing rumors of Koharu the Dominatrix, famed for her saliva play. He expects nothing more than to receive spit—but what awaits him is Koharu, a true specialist in "that" particular art. One after another, unexpected sticky torments unfold: forced consumption of thawed frozen phlegm, toothbrushing with saliva, and drinking blended spit and piss. The M man gradually loses his mind. In the second half, another masochist who once played with Koharu is lured into a new, twisted paradise—leading him beyond saliva into the forbidden realm of vomit play, toward complete mental breakdown. A bizarre and shocking tale of Koharu's relentless obsession.