【The serialized version has begun!】

https://ncode.syosetu.com/n4238ia/

A link is also available at the bottom of the page, so please feel free to use it!

Sisters born into the prestigious Feres family of mages. The elder sister, Leticia, is exceptional, a prodigious genius who joined the royal court at the youngest age in history. In contrast, her younger sister, Maiana, possesses not a single outstanding talent and is considered third-rate or worse as a mage. She was labeled incompetent, capable of using only outdated rune magic.

Maiana works at the royal court as her sister's aide. Plagued by an inferiority complex, she cannot defy her sister, single-handedly completes most of the work, yet her achievements are always credited to her sister. With even her fiancé taken from her, a turning point arrives one day for the hollowed-out Maiana.

The Second Prince, hailed as a prodigious genius of magic, came to recruit Maiana, not her talented elder sister.

To the Prince who told her he needed her, Maiana rises, ready to answer his call.