My brother's wife, Kyoko, is 28 years old, a beautiful and elegant woman with a great figure. She has a pale and slender body, but her breasts are visible even through her clothes. I fell in love with her at first sight. Kyoko has an abnormally low tolerance for alcohol, and she often gets drunk and collapses into bed. I began to look forward to playing pranks on my sister-in-law, who doesn't wake up easily from small things...