[San Se Fang (Heiqing Langjun)] Hyakkasou7 <<Hyakkasou no Nonbirishita Ichinichi>> [Watson]

At Hyakkasou, a pleasure house presided over by its smiling, ever-devoted mistress, a lucky patron settles in for exactly what the title promises — a leisurely day of relentless service. When one round isn't enough, she happily sucks him squeaky clean and assures him she'll handle everything, while the house's hard-to-procure fertility potions hint that securing the establishment's future may take more than one blessed attempt. The finale puts the mistress and a fellow courtesan side by side, begging to be dominated until both are left in blissful, ahegao ruin — and with the next part already teased, this leisurely day is far from over.