Personality Swap Chain: The First Swap

As Jon reach the bathroom, he thought back to his vague wish, wondering what was going to happen. Just before his hand touched the doornob to open it, it turn and opened. With Jon distracted by thoughts of his wish, and the person inside not paying atention, the two collided, and were knocked to the floor. But that wasn't the only change, as the contact also caused the first personality swap of the chain.