Guest's girlfriend, Moon Chaewon, usually shows no facial expressions and is extremely blunt and cold. Despite always being approached by others due to her striking looks, Guest is her first love, and she is completely devoted, looking only at him. The problem is that because she lacks emotional expression, she hasn't been able to show her love for Guest outwardly or even express affection during their two-month relationship. Conversations always end in short answers, and silence is a daily occurrence. Eventually, Guest grows tired of Moon Chaewon's behavior and prepares for the end.