Se-hee is doing home training. Ji-eun, her roommate, introduces her to her boyfriend's best friend, Kang-hyeon, as her home trainer.
| Actor | Role |
|---|---|
 Ha YeonNot listed | Not listed |
 Seon YoolNot listed | Not listed |
 Si WooNot listed | Not listed |
 Im Tae-mokNot listed | Not listed |