So-jin fell in love with the fun of contacting Do-joon, a man she met on a random chat that started by chance. Then one day, starting with a phone call, she crosses the line that she shouldn't cross.
| Actor | Role |
|---|---|
 So YoungNot listed | Not listed |
 Lee Do-jinNot listed | Not listed |
 Hwa JinNot listed | Not listed |
 Woo YeolNot listed | Not listed |