Dresses, hair ornaments, stuffed animals... Helen, the stepsister, has taken everything from Callista. What she wanted next was... a fiancé and the position of the next head of the family!? I've been patient until now, but I can't overlook this this time! Callista finally decides to raise the banner of counterattack. To protect what is important to me. At that moment, it was my childhood friend and the academy's hero, Felix, who extended a helping hand—!? I won't lose to my greedy stepsister! A story of an oppressed young lady who seizes happiness with her own hands.