The long summer vacation has finally come to an end, and Ekaterina, her beloved brother, and their friends—Mikhail and Flora—are back in the capital for the second semester. After school kicks off and Ekaterina reunites with her classmates, her friend Marina has a genius idea: They should organize a musical evening where everyone can showcase their talents! As a former choir girl, Ekaterina is more than happy to take charge. Her preparations for the event lead her to make the acquaintance of a classmate of theirs named Renato Selesar, a prickly yet adorable boy with an unbelievable talent for music. At the same time, tensions start rising between Ekaterina and Lydia Selesnoa—the daughter of a powerful marquess—who has her sights set on the empress’s throne. It appears Ekaterina’s recent closeness with Mikhail hasn’t gone unnoticed...