The two guards on the side had made their moves first in attacking Zhang Shaofeng and Zhang Jian.
Zhang Jian had never encountered a situation like this. While he was pretty good at fighting in school, he was nothing once he had stepped out of school. Hence, Zhang Shaofeng pulled him away once he saw the two guards closing in on them to take them on himself.
Having learned some moves from Yun Jian for so long, Zhang Shaofeng was more or less able to handle the two security guards even though his current ability could not yet allow him to fight high-level secret agents.
In spite of it, Zhang Shaofeng had no weapon right now. Otherwise, the two guards would not be his match.