Yoh Nigorikawa's life was positioned at the lowest depth of the society. At the academy he was an attendant of a special-student. At the evil organization Demonia PPO he was an underling who had to do chores every day. He was surrounded by the huge breasts of the dark knights. However, he could only observe them from a distance which left him with a bitter taste. The sudden battle test was a chance for Yoh to grope the breast he had been dreaming about all this time! The success story of Yoh where he would grasp hold of the glories and the breasts had now begun…