Boruto realizes that the entire maze and the deaths of the other participants were a massive Genjutsu simulation . Those who "died" in the game are actually still alive but in a comatose state.
The true mastermind is revealed to be Ouga , the eighth Inner member of Kara. She created the labyrinth to find "human desire" after losing her own will to live due to Amado's cybernetic modifications. Boruto: Naruto Next Generations Episode 280
The episode focuses on Boruto's final confrontation within Ouga’s twisted experiment. Key developments include: Boruto realizes that the entire maze and the
Kiseru Ganko, previously suspected of being a traitor, is revealed to be an undercover ANBU operative investigating Kara. previously suspected of being a traitor