Yoo Jeongwon, a call center agent worn out from dealing with rude customers, finds unexpected comfort in the kind voice of one particular caller. Feeling a little lighter, Jeongwon finishes his shift and stops by a restaurant after work—only to recognize the same gentle voice coming from one of the staff members, Lee Gyuhyuk. Realizing that Gyuhyuk is the man who comforted him earlier, Jeongwon hesitates, unable to approach him and eventually decides to leave. But just as he’s about to walk away, Gyuhyuk calls out to him. “My shift ends soon, and… well…” “If we just part ways like this, I think I’ll regret it later.” Drawn in by Gyuhyuk’s warmth and sincerity—so much like his voice—Jeongwon finds it impossible to turn him down.