As Seola was showing Elena the mechanisms of the core dungeon, suddenly Elena noticed some movement in the city of sin and a slight smile appeared on her face. The current time was exactly what the members of the Greed and Pride organisations were waiting for.
Soon it would be time for the revealing of the Grand Temple. So to allow the induction of the natural energy of Valhalla, the strength of the barrier was lowered to the minimum possible degree.
Even though this barrier was created by Seola herself, the responsibility to control the barrier was given to the group of Evil Devil. This lowering of the barrier's strength was completely planned and it should not have posed any problem.