After Muzan had been defeated, Zenitsu, Rengoku and Uzui began meeting up to drink on a regular basis. Zenitsu isn't sure why he always tags along with the older men; there's just something in the intense way they stare at him that excites him. That night, he finally understands just what that special glint in their eyes really means. --- (Or: Zenitsu gets fucked by Uzui and Rengoku. That's it, that's the porn.)