In a world ruled by magic, 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 the study of magic, but her magic power is extremely weak, so she has been unable to fulfill of her dream of becoming a mage.

In the end, Ashley was granted temporary mage status by her mentor, the Secretary of the Ministry of Magic Education, but in exchange she is asked to train an imprisoned young man with immense magical power that no one with magical power can even touch...?! A young man in solitary confinement and a second-rate mage. It's a mysterious gender-reversed Rapunzel love-story by a promising new author!

Notes:
- The first volume includes an epilogue about what happened to the main characters after the last chapters of the first part.
- It was announced on December 27, 2021 that the manga will resume serialization on January 21, 2022 due to its popularity.
- Chapter count includes 4 extras.