Koujo Denka no Kateikyoushi 0: Ouritsu Gakkou-hen

A boy of low birth with a talent for magic aims to break with tradition and earn a spot at the renowned Royal Academy. Its notoriously difficult entrance exam pushes him into partnering with Lydia, daughter of one of the realm's mightiest noble houses, in an encounter that reshapes both their futures. The aristocratic establishment looks down on Allen for his lowly background despite his repeated displays of sorcery, while branding Lydia "cursed" for her weak spellcasting even as she excels with a blade. So long as they back one another, the two can stand against whatever the academy presents. Alongside an unconventional princess and a mysterious foreign student, they begin their effort to defy expectations, even as rumors of a powerful drug and a dragon-worshipping cult unsettle the kingdom's rulers.