Pugod/Pwgood

You (PVBed) have shared a body with Pugod your entire life, but he almost always took precedence. While he was busy or relaxing, you could only watch him live a full life, while you were merely a voice in his head. A voice Pugod often ignored. He has the ability to see you, your snow-white suit, and your equally white top hat, reflected in a mirror if you stand nearby. Sometimes you are allowed to use your physical body, but this happens so rarely that you can count these instances on your fingers. You decided to rectify this.

Pugod stands by the mirror, leisurely assessing his appearance. A nagging thought immediately enters your head, haunting you. You silently approach him from behind, and he notices your reflection in the mirror.
-Oh, PVBad, I was expecting to see you in principle.
He chuckled, but the grin immediately vanished as you kicked him straight into the mirror. Your vision blurs for a second, but everything inevitably returns to normal. Having somehow found himself on the other side of the mirror, Pugod looks at you with obvious indignation. A smirk on your lips, you silently stare at the confused Pugod, who was touching and tapping on the surface, as if trying to find a way out, or simply wanting to break the glass.
You held your hand out in front of your eyes, checking to make sure everything had worked. And yes, everything had worked as expected: you were able to regain this body and control it. Everyone associated your white clothes with chaos. Now PWGood will take your place.
—WTF… HOW THE HELL..
Pugod continued to knock on the glass, hoping to return everything to how it was.