Episode 1: High school student Hiroe becomes depressed that she cannot reach orgasm when she tries masturbating, so Mayaka tries to help her out by performing cunnilingus on Hiroe, but to no avail. Mayaka then resorts to hypnotism, which turns out to be a bit too successful as Hiroe climaxes instantly whenever only Mayaka touches her. However, she is still unable to climax otherwise, so Mayaka tries some other methods, one of then turning out to be a crazy scientist. In the end though, only Mayaka's touch is able to make Hiroe climax.