He had no answer to whoever this was he was looking at. He was sure it wasn't a reflection. If it was, he and his replica would have been looking at each other at eye level.

Speaking of mirrors, Tsukishima looked around for any reflective surface and saw a glass window a few meters away that was the right angle to see him and, well, him. But what he saw was one him, and one... was that.. "Nanase-san?" The name came out as a whisper because there should have been two hims if he had been looking at a duplicate. And his voice sounded awfully off... He looked back at the reflection and raised a hand. Sure enough, Nanase-san's reflection put his hand up.

A possibility so absurd came to him after examining the evidence: he was, for whatever reason, in Nanase's body.

Was he maybe dreaming?