A romantic-comedy drama following the life of Mi Oh. One day, inside her head, the "sexy" left brain, L, and the "romantic" right brain, R, suddenly appear. "Are you two, my brain?"
| Actor | Role |
|---|---|
 Kim Jae-youngR | R |
 Gong MyoungL | L |
 Hong Kyung태우 | 태우 |
| 백백승호아역2 | 아역2 |