ルーン魔術だけが取り柄の不憫令嬢、天才王子に溺愛される 婚約者、仕事、成果もすべて姉に横取りされた地味な妹ですが、ある日突然立場が逆転しちゃいました

Mayana, the daughter of a marquis, comes from a famous family of magicians, but she is a failure who can only use outdated rune magic. What's more, she was bullied by her older sister, who is an excellent magician, and even her fiancé was taken away from her. One day, Prince Alektos, a great magician, comes to see Mayana. "Meyana Pheles...I came to scout you" Outdated rune magic will save the country! ? Mayana, who has been despised as a bastardized version of her older sister, is about to begin her turnaround!