Ippei has a crush on his older sister Saori (Yoshino Sally), but in front of her, he spends his days trying to be strong and participating in joint parties. One day, his friend Masakazu took Ippei home after he got muddy at a joint party. He, too, harbors extraordinary feelings for Saori. Saori offers tea as a token of gratitude for taking care of her younger brother. It was just the beginning of the tragedy that was about to begin...
