Reiko and Saki, who have different mothers, hear the news of their father's death and meet for the first time at their last home. The last wife, Sumire, who had heard the story from her husband's life, welcomed such sisters warmly. That night, Reiko visits Saki. I felt so lonely that I wanted to sleep with him. And the two of them naturally sucked their lips and overlapped their skin with each other. After it ends, he tries to find out if Sumire really loved her father, but...