The Third Condition

When Derek heard the third condition, his face went pale, and his hand at his side slowly clenched into a fist, his knuckles turning pale.

Gideon, however, didn't notice Derek's reaction and continued, lost in his own thoughts.

"There are more than ten of us who entered this mission room. If only one person is left alive at the end, it will trigger the 'ultimate judgment' hidden rule of the room.