Yuzuru decided to stay behind his brother's house to attend a school in Tokyo, where he discovered that his brother's wife, Tsukasa, was beautiful and gentle. One day, she went shopping and came home in a heavy rain, and her whole body was soaked with grace, revealing her beautiful big breasts right in front of his eyes.
Witnessing that scene made him unable to bear it anymore and immediately pressed his sister-in-law down to enjoy that wonderful body, even though he knew that if his brother found out, he would be kicked out of the house....