Kaedama Youjo wa Jiyuu ni Narimasu!

Nina Lindra is an accomplished student and powerful magic user who hides a secret. At the request of the Lust family, she frequently impersonates her adoptive sister, Lilia Lust, including taking her exams. When the queen asks Lilia to heal her sick son, Nina assumes her identity once more, using her abilities to help Prince Erland. During this time, she begins to see the kindness beneath his cold exterior. As her emotions develop, a foreign prince also becomes part of her life, complicating her situation. Nina must decide whether to keep living under a false identity or take a risk to live authentically.