A young wizard, in his fourth year at a magical school, returns after summer vacation to find the campus abuzz with excitement over an upcoming international tournament, where three magical schools will compete in dangerous and challenging tasks. The tournament is historically meant for students above the age of seventeen due to the perilous nature of the contests. However, a mysterious event occurs when an enchanted object, meant to select eligible contestants, inexplicably chooses the young wizard as an additional, underage competitor, despite him not having entered. This surprise selection is met with controversy and suspicion as it breaks the tradition and rules of the tournament.

As the competition begins, the young wizard faces the first task, which tests his courage and quick thinking in a battle against a fearsome dragon. Meanwhile, beyond the tournament, unsettling events hint at a darker force at work, a shadow from the past that seems to be rising once again. The wizard's friends rally around him, amid growing tensions and rivalries between the different school contingents. At the same time, the school also becomes a ground for typical teenage experiences, dances, crushes, and the blossoming of friendships, juxtaposing the normal pains of adolescence against the backdrop of an increasingly ominous atmosphere that suggests the safety of the wizarding world may soon be at risk.