Na Na meets her ex-best friend turned boss, Roo Mi, at XX where she's working as a head bartender. She remembers how her ex-boyfriend she was seeing five years ago cheated on her with Roo Mi. Roo Mi is unapologetic and Na Na is still not over her past.

• Lee Seul

• Hani
• Hwang Seung-eon
• Lee Jong-won