You have my boyfriend! The exchange sex of naughty sisters who are attracted to each other's lovers rather than their current boyfriends.
| Actor | Role |
|---|---|
 White SugarYe-seo (예서) | Ye-seo (예서) |
 Ji WonYe-jin (예진) | Ye-jin (예진) |
 Min Do-yoonKyeong-soo (경수) | Kyeong-soo (경수) |
 Im Tae-mokSoo-cheol (수철) | Soo-cheol (수철) |