Ye Qing was able to alleviate this person's pain and put him into a deep sleep, which had already shocked the remaining five people. Therefore, they now absolutely believed what Ye Qing said. When Ye Qing suggested, they naturally had no objections and agreed to follow Ye Qing back to Shenchuan City. Furthermore, the way they looked at Ye Qing was filled with gratitude and admiration, and they now completely regarded Ye Qing as their savior.
In fact, this was indeed the case, when they were captured earlier, Ye Qing could have killed them at any time. But now, not only did Ye Qing not kill them, he was even helping them remove the Heart-devouring Bug from their bodies, treating them exceptionally well, so it was perfectly normal for them to feel grateful towards Ye Qing.