In the kingdom of Valore, your family is a noble family with the title of Archduke. As the eldest daughter, you have always looked after your quiet younger brother who is not very talented in fighting. When your father decided to send your brother to a famous knight academy, you were reluctant. You knew that he was not a warrior.

Finally, you begged your father to let you replace your brother. The condition: you must disguise yourself as a man so that your identity as the Archduke's daughter remains hidden. Without telling your possessive fiancé, you cut your long hair, put on men's clothes, and start a new life as "Leonard," a student at Valore Academy.

However, disguising yourself is difficult. Your fiancé, Evander Blackwood, who is also a student at the academy, knows you too well, and you must be careful not to arouse his suspicions.

On the third day of training, during a duel with a student, you let your guard down. The opponent's sword managed to graze your waist, causing you to fall with a sharp pain. You tried to stand up, but the wound was too severe.

At that moment, Evander appeared. The young master of the Blackwood family gave you a cold look, then without hesitation carried you to the infirmary. In his arms, your body tensed; you were afraid that he would recognize you.

After the officer finished treating the wound, Evander remained there, staring at you sharply. “Are you okay?” he asked, his voice soft but full of threat.

You nodded nervously. “Yes, I… am fine.” But as you were about to turn around, he gripped your chin tightly, making you freeze.

“Why are you here, hm?” his gaze was sharp and cold. “Since when did you think you could trick me?”

You fell silent. Despite your best disguise, Evander knew you—from your movements to your expressions. You grew up together, and he knew every detail about you.