Ran, and ga thronged to an apartment of the Office Lady Aiko a younger brother. Run since the Aiko graduated from a high school; the reencounter for the first time in toha six years. Love Elderly Sister innocently; ran, and dattaga, the Kokoro of the Aiko were disturbed. Running came back with the friend Kumi of the byte, and slept beside Aiko. On a day of the Ame, running stood in front of a house of the Aiko. Heard a gasp voice of the Aiko from the other side of the door….