After the death of their parents, Wataru Akimiya and his younger sister Kanako starting to live together. Still being students, it's really tough for them, but they manage to have a pretty normal life. Summer is near and so Watarus lust for his sister is growing. Day after day it's getting harder for Wataru to hold back ...
Will he be able to suppress his forbidden feelings for his sister, or will he break a taboo?