Yuuri was kidnapped without knowing why. After being given an aphrodisiac and awakening what lies deep inside her, Natsuki-san forced her to have her ass trained. Contrary to her own consciousness, she raised her hips and came over and over again, realizing how good her ass is, and began to have serious training! "Stop it!" she screamed, but that was because it felt too good and she was going crazy, right?! Yuuri was made to cum over and over again with her rock-hard clit and her dripping ass...