Just as Maid Lotus said, no one interfered with the slaughter between apprentices. Golden Roc Fort was glad to see future killers go through real and harsh training. They had only set a small number of rules.
Firstly, the slaughter could only take place in East Castle, specifically the eastern and southern area of Pyrowork Academy, reaching Reincarnation Cliff to the east and Woodensaber Alley to the south. Any killer apprentice going beyond the set area would be slain by concealed guards.
Secondly, the slaughter could only take place among the apprentices. Anyone who murdered a servant would also be killed. Anyhow, the servants dared not to enter East Castle in spite of this rule, hence the blackmarket no longer existed, and servants who brought meals or cleaners would only enter in groups and then leave in a rush. During the slaughter, East Castle was chaotic, filthy, and no different than the ruins in Woodensaber Alley.