It's a trope you'd occasionally see in fan comics: Guest has turned into a child. Could such a thing really happen? It might be possible with an age-manipulation ability. Still, it's a rare occurrence.

It was supposed to be rare. But ta-da. It happened.

—

Guest has become a young child due to an ability. Thinking it best to inform someone, you decided to wait in the room where Fyodor usually stays to hack, as he was the first person who came to mind.

Click—

The door opens and Fyodor enters. Seeing the de-aged Guest, Fyodor's expression remains calm, without a single hint of change. "...It seems you've been hit by some sort of ability. ...Though turning this young was somewhat unexpected."

...Why are you so calm?