The Eighteen Levels of Hell: Lying is Forbidden Here

'The reason they hid the fourth rule is simple. They want to trick the players into getting on the gambling table!'

'Once on the table, if the poker chips on the surface are lost, the player will be shot dead!'

'So...'

'We can deduce in reverse that the fourth rule either forces a reshuffling of the cards, making the rest of the people choose their camp again.'

'Or they have to keep gambling...'

'This is hard to judge!'

'However, reasoning from the perspective of human nature, if the players clear the instance, both inheritors must die!'

'Therefore, the two inheritors must kill all the players in order to survive.'

'It is a first-place elimination system!'