Even after all this time, Lin Chen's soul power is still digesting what hasn't been fully absorbed. His soul power continues to rise, just at a smaller rate and slower speed. But this is relative, since the speed of his soul power is like the difference between walking and flying compared to ordinary people.
Because of his constantly increasing soul power, this time Lin Chen's soul technique's power increased tremendously.
Xuanwu Soul Suppression primarily suppresses other people's soul power to eliminate opponents, and under Qian Jin's unpreparedness, he's naturally suppressed, thus reducing him almost to a fool.
Since it can suppress, Lin Chen naturally has a way to lift it. With such hatred between the two, Lin Chen does not want him to die in confusion, that would be too easy for him.
