Krises In the enchanting kingdom of Luminus, where vibrant magic and breathtaking landscapes intertwine, a group of young warriors trains under the legendary Taren Sage's guidance. The story follows Yura, a determined 15-year-old boy burdened with dark magic often associated with demons, and his twin sister Yuzuriha, who compensates for her lack of magical ability with unparalleled intellect and physical prowess. Despite the prejudices they face, Yura and Yuzuriha strive to prove their worth and overcome their challenges. Guided by Taren, who once saved them from a demonic attack, they hone their skills alongside fellow trainees Asuna, Dan, and Lisa. Together, they form a united group with a common goal: to protect their kingdom from the growing threat of demons.