There's an itching pain at Katsuki's back. He frowns, reaching back to rub at it and he feels something. Something pressing under his skin.
He tugs his shirt off making his way over to the mirror to try and check it out.
The pain grew as something ripped through his skin, an extra weight knocking him off balance. Katsuki felt disoriented and when he turned to look he saw...wings...
They were a pure white, the down soft but sensitive under his fingers as he reached out to touch them. They were heavier than he'd expected wings to be.
There was only one response to this.
He won't be leaving his room if he can help it today.