The Margrave's Daughter & the Enemy Prince manga volume 1 features story and art by An Ogura.

Anna, daughter of the Margrave of Halmich, is tired of the expectations placed on women in court. She has no interest in marrying a nobleman because society expects it of her. Instead, she works hard on her swordsmanship and dreams of joining her father on the battlefield someday. Unfortunately, fate deals her a heavy blow: when the hostile forces of the Kingdom of Albion invade and take the Halmich heir prisoner, she is given to the enemy prince in exchange for her brother's life.

But even in the face of these tragic circumstances, Anna still has plans of her own:

“I'll infiltrate their ranks as a tribute, and then… I'll defeat the man who killed my father.”

The Margrave's Daughter & the Enemy Prince manga volume 2 features story and art by An Ogura.

Anna Halmich's new life in the Kingdom of Albion starts with her attending Centaur Ladies' Academy, where she must learn the ways of an elegant noblewoman… which Anna is most certainly not! Her total lack of refinement comes in handy when she rescues her classmate, Claire, from a group of high-status bullies led by Iris Eclipse - Prince Kenneth's actual fiancee?! But if she's his fiancee, what exactly does that make Anna?! Enraged by her fate as a political pawn, Anna joins Claire in her mission to disrupt the country's corrupt hierarchy… but will Kenneth be an ally or enemy in this fight? And what will Anna do when Kenneth commands her…

“I order you… to fall in love with me.”

The Margrave's Daughter & the Enemy Prince manga volume 3 features story and art by An Ogura.

Prince Kenneth has ordered Anna Halmich—his hostage— to fall in love with him, declaring his intention to marry her instead of Iris Eclipse! If Iris's father were to catch on, however, Anna's life could be in danger. So when Kenneth suddenly departs, he assigns his most trusted knights to Anna's protection… in other words, stalking her around the academy! Their presence proves worthwhile, however, when Anna and Claire venture into town and find themselves on the brink of a full-blown political riot. Anna's plans to avenge her father and upturn Albion's aristocracy could be dangerously derailed by Theo Eclipse, so what will she do when she receives an invitation to visit his home…?