Secrecy

When Sato saw this stranger in the station, he couldn't take his eyes from him. so given the sign, he followed him, and that night also took one of his name cards. But what was the reason that stranger agreed so easily? and how would he react when his one night stand would come to his work place to look for him the morning after? (Source: MU) Included one-shots: Volume 2: Take A Deep Breath