This already happened once in Iruma-kun with Kiriwo and his boss Baal, and Naruto's famous Chunin Exam - when Orochimaru made his move during Gaara's and Sasuke's match - is another prime example.

That said, anime tournaments like the Harvest Festival are a perfect chance for true villains to attack. In fact, the boys might reluctantly team up to claim that leaf, then find a non-violent way to decide who keeps it. The real problem is not their opponents, but the monsters all four boys are trying to catch - or perhaps some natural hazards surrounding the much-coveted legend leaf. Instead, Alice and Sabnock must fight hard to keep up with or surpass the Dorodoro brothers to claim those prizes and score big. They're aggressive and cocky, but they won't get themselves disqualified by landing an illegal blow on their abnormal class competition. On the face of it, the Dorodoro brothers should make for some fierce but healthy competition for Sabnock and Alice, and there's no hint that the brothers will cheat or harm anyone on purpose.

School of dragons week 4 scavenger hunt