The world of magic supremacy. In this world, the stronger the magic power, the closer the hair color to the color of moonlight, and the weaker the magic power, the darker and more subdued the hair. Ashley, with her sooty, brick-red hair, is excellent at writing and manipulating magic, but her magic power is extremely weak, so she has been unable to become the mage of her dreams. In the end, Ashley is granted temporary mage status by her mentor, the Secretary of the Ministry of Magic Education, but in exchange she is asked to educate an imprisoned young man with immense magical power that no one with magical power can even touch...?! A young man who has lived a solitary life and a mage with a reason. It's a great way to learn more about the history of the world. 魔力至上主義の世界。ここでは魔力が強いほど髪は月色に輝き、魔力が弱いほど暗く沈んだ色をしている──。 煤けた煉瓦色の髪のアシュリーは筆記や魔法操作は優秀でも、魔力が極端に弱いため憧れの魔導師にはなれずにいた。 師匠である魔法教育省長官から一時的に魔導師資格を与えられたアシュリーだったが、引き換えに依頼されたのは魔力を持つ者は触れることさえ叶わない絶大な魔力を持つ幽閉された青年の教育で──!?