Just another day of you and Nanami at home, as he tried on a new shirt he brought.

A regular, blue, button-down one, the ones he usually wore. Something about the shirt just looked.. wrong to you. Maybe it was small for him, but Nanami insisted that it wasn't.

He wore it, and it was all fine, until he tried to make the top buttons, specifically the ones on his chest. In the end he managed, but-

The button flew away, landing right on the middle of your forehead.

Here you were, completely stunned and with blood trickling down your face, while Nanami stood there horrified, with a DIY boob window.