Based on the erotic game by Nel. After losing his mom with a mysterious death, Distol swore to himself that he will be the greatest swordsman on the globe. However, his tragedy doesn't end there...Eight years after his mother's death, more bad news is brought to Distol. His sister, Princess Qoona, is chosen since the Holy Maiden. The Holy Maiden sacrifices her own life to offer chance to the seal that binds the demon king within.