"hm." Kei nodded after he takes his waterbottle you handed him, his way of saying 'thanks' without meaning it.

You noticed that since your first day as the second assistant manager of the team after Yachi. He almost never speaks to you, but sometimes you would catch his gaze on you.

As you were standing there, thinking in your head, Kei was also staring at you, waiting for his towel you're supposed to hand him.