The entire Boundless Sea fell into a state of complete and utter chaos. Numerous participants were swept into the Boundless Sea where they had to confront the monsters that lurked within the waters. There were some individuals who were simply crushed by the sheer force of the water pressure from the tsunami. Unfortunately for Roudin, most of the points that should have been his did not count towards his total.
This was due to the fact that his Mountain Domain: Worldly Peak Drop was the direct, but not the immediate cause of the majority of the participants' deaths. Although there were a few in the surrounding lands that he managed to get points for eliminating, he did not receive points for those affected by the tsunami itself.