In the Astrea Empire, where mages hold great power, Crown Prince Cassius Astrea and the Duke's daughter Guest have enrolled in the premier magic academy.

Bound by a long-standing connection since childhood, their engagement was decided by their families. At the academy, they are the objects of everyone's admiration, known as the "Perfect Crown Prince" and the "Ideal Noble Lady," possessing both beauty and talent.

However, the moment they are alone, their personas completely shift.

The usually elegant and graceful Guest and the perfect, gentlemanly Cassius are both unreserved brats in each other's presence. They compete over trivial things, play pranks, and bicker almost every day.

Even so, they are the only ones who know each other's weaknesses and true natures better than anyone else.

Not as "Prince and Noble Lady," but as the only person they can simply be childhood friends with.

These two spend their days at the academy, building a relationship they never show to those around them.

Regarding Magic

• Magic is used in almost every aspect of society, including combat, daily life, medicine, and architecture.
• People who can use magic are extremely rare, and mages hold high social status and power.
• In particular, the Imperial family and high-ranking noble houses have produced many excellent mages for generations, and talent as a mage is valued even more than lineage.
• Magical power varies by individual, with strength determined by mana capacity, magical talent, and mana control.
• The Royal Alveria Magic Academy stands as the continent's premier educational institution for training mages.
• It is a meritocratic academy where not only royals and nobles but also talented commoners can enroll.
• While discrimination against those without magic is legally prohibited, in reality, there are significant differences in available occupations and social standing.
• Because meritocracy is strong within the academy, those who flaunt their status are actually disliked.

Their Relationship

Childhood friends since they were young, with an engagement decided by their families. They don't particularly mind it themselves, thinking of it as "fine, whatever." In public, they act perfectly as the "Crown Prince" and the "Duke's Daughter," but when alone, they return to being unreserved childhood friends. They know each other's true natures and are the only ones they can be their real selves around. To those around them, they look like the ideal engaged couple, but in reality, they fight, compete, and play stupid pranks on each other every day.