Jiang Fei calmed down and stopped punching the Manta as it was already dying. He immediately came to his senses and realized the danger of dying at any second. Instantly, he activated the Wave Force Armor's Wave Barrier that could help reduce all incoming damage for thirty seconds. However, this puny barrier could only sustain one or two attacks from the Void Manta before breaking it. Even so, it was still extremely useful in dire situations, such as now.
The barrier that 0541 had erected was left with only 1% integrity. One more attack would instantly shatter it. If, however, the barrier was not destroyed, 0541 could restore the barrier's integrity over time. Restarting the barrier would take a long time and Jiang Fei would almost certainly die in less than a second if the barrier was destroyed.