What Turned Me Out to Be Bad Was This Vegetable

After he became a vegetative state, my soul left his body and became attached to his brain without his awareness. So I became him, and he became me, forming what is called a dual personality. Started a different life path. Just like in real life, we often find that some people suddenly change their temperament, some people do some unreasonable things, and some people have dual or multiple personalities. Take a closer look and think about whether there is such a possibility as described in the book.