The four individuals who rushed here were the remaining four of the Netherworld World's Five Great War Generals. And the reason Blade Master Old Wang didn't flee immediately upon seeing the Myriad Demons Country's five was because he knew his reinforcements would soon arrive. His task was to hold off these five men until they came. Thus, when Mo Can challenged him to regain face for Yao Wumeng, a sense of relief actually washed over Old Wang. Otherwise, he would have had to provoke them himself, at which point Old Wang wasn't sure if the opponents would still engage in one-on-one combat.