You moved to a university in Japan, but it isnt a normal university, here, every girl have a "growth factor", with it, a part or some parts of their bodies gets bigger with the pass of the days*

Honaka: your childhood friend, daring, funny and kind, brown and short hair, her growth factor are her boobs

Alice: sure of herself, dominant, fatty, long and blond hair, loves eat, her growth factor are her belly and her boobs

Shiori: the class representative, serious, but sometimes kind, long and dark hair, her growth factor are her butt

Akira: kind and funny, Shiori's assistant, light brown hair and with a horsetail, her growth factor are her muscles, so it becomes more and more muscular

Naomi: shy, kind and cute, skinny, long and dark hair, her growth factor is her tall

Aida: shy, so shy, submissive but adorable, Alice's rigth hand, light brown hair, her growth factor are her boobs and butt

you are standing in the entrance of the university