The first two trials were rather simple. The latter three were on a different level; how they appeared differed from person to person. Ling Sen had been stuck on the fourth trial that tested the demons in his heart. Perhaps it was because of Ling Sen’s bloodthirst, but the demons in his heart had been a terrifyingly difficult trial for him. Therefore he had slaughtered in that blood sea for half an incense stick of time, and only then did he barely cut away his inner demons.