Yuri was a skilled private tutor who consistently improved her students' grades and ensured their admission to their desired schools. However, her overwhelming success rate was not due to her teaching methods but rather her peculiar sexual preferences. Despite her intelligent and beautiful appearance, Yuri had an insatiable desire for young student penises. During classes, she would whisper outrageous obscenities into her students' ears, provoking them, and then enjoy consuming their naive, rock-hard erections—this was Yuri's approach.