For premature guys across Japan, Yuka Osawa gives her full support! Through careful and repeated orgasm denial, she helps strengthen control over anxious, near-ejaculation dicks with intensive training. However, due to extreme sensitivity, even slight stimulation along the frenulum leads to unexpected ejaculation—a surprising twist. Still, ending after just one round isn't enough! Yuka takes on the challenge again with another round of intense training. The highlight is her meticulous coaching aimed at improving dick control.