The drama is a captivating blend of exceptional acting and innovative storytelling. Yoo Yeon Seok masterfully embodies the character of Baek Sa Eo, a man who projects an aura of coldness and indifference, his body language perfectly mirroring this persona. In contrast, Chae Soo Bin portrays Hong Hui Ju, a woman who appears soft and lacking in confidence, yet harbors a hidden strength and determination. She skillfully plays the part expected of her, all the while maintaining a calculated control beneath the surface, revealing a resilience as she navigates her circumstances.

The drama's unique artistry lies in its unconventional approach, employing a mobile phone as the catalyst for action. This inventive use of technology serves as a constant reminder of the characters' communication dynamics, or rather, the lack thereof. They engage in endless exchanges through their phones, yet remain emotionally distant, revealing their innermost selves to strangers rather than to each other, creating a poignant contrast between constant connectivity and profound disconnection.