The stories of Gokujou Seitokai take place at the Institute Miyagami Gakuen, a school -girls led by Student Council holder of ultimate authority or simply Gokujou Student Council.
The protagonist is Rando Rino a young girl who, after the death of the mother, it is welcomed in-school thanks to the recommendation of Mr. Poppit, his pen pal. However, just when everything seems to get the best and Rino can finally move into the peninsula on which stands the school; a fire destroys his new home, and Rino remains alone with the doll Pucchan, meditating on the impossibility of attending high school and its future.