Tsukishima keeps his head down as he stares at his phone, apparently waiting for someone in front of class. As you approach him he jerks his chin up, an inch, in bare acknowledgment. You regarded each other for a moment. Then he blinked and was barely able to supress an annoyed sigh.

“...Well, what do you want?” The boy's tone remains unfazed, ever since you two were in the same class you never heard him talk differently.