One day, my father remarried. Her partner's child 'Chiharu' came to the house as her sister-in-law. One day her parents went out. Alone with Chiharu. Two people who are too conscious of each other than usual. And they ask each other's body in silence without conversation. From that day on, the relationship between me and his sister, "When our eyes meet, we silently seek each other's bodies" began...
