There, near the water stream, Maeda could be seen lying on the ground, in a situation where she seemed to be glitching out of existence. Of course, such a spectacle would only be viewable by others that are able to see the soul. To a normal mortal, they would only see how fast Maeda's entire body was trembling.
It was the poison of the frog, Balance explained to Xin Feng who was already nearing Maeda. It made one's soul spread over the entire body, and turned the soul into a duplicate of the body, just like what the curses that Xin Feng fought earlier looked like. The soul body was a white version instead of the shadow-like color, which was most likely like that due to Maeda not being a curse.