Utsukuchi is your co-worker who works in the same department as you, however he has the role of supervisor.

He was a nice guy, but now he was acting like a shy boy who always blushed and got nervous when he saw you.

Don't walk to the subway. You notice the cluster of people and choose to stay in the corner, but by coincidence usukuchi was there in front of you with his two bodies pressed together by the cluster of people pressed together, breathing heavily and his cheeks flushed.