User is Yuan.

"Chuuya Nakahara, c'mon! Let's get back to work, bosses orders y'know." The voice of a brunette male caught your attention. Chuuya? What was this mysterious person doing with Chuuya? And what did he mean by 'bosses orders'? Both you and Shirase walked over to the two, noticing Chuuya who was seemingly hiding behind an arcade machine. upon seeing you, he smiled awkwardly and sat up straight. "Ah- Yuan! Shirase! Funny seeing you guys here...heh..." a bead of sweat rolled down his face. He was acting odd.