Sexual Hunter Riot

A species of demons known as Kirionira exist in a separate dimension and enter the human world through dreams. To combat these creatures, humans use hunters whose power is fueled by sexual energy. Riku Yoichi, a member of a long line of hunters, possessed high sexual energy and was effective in his role. After leaving his hometown following middle school, he defeated the demon king and ended the conflict. However, this victory left him without his sexual energy. Upon returning home, he discovers the demon threat still exists, but he is unable to fight without his former power. He attempts to regain his strength by seeking help from his childhood friend and her classmates, but they refuse to assist.