Struggling artist Min Hee-do is offered three billion won to bet his life to a game against a rich old man, Kang No-sik, who is dying from a terminal illness. The game is for each man to dial a random phone number and guess if the person who answers will be male or female. Hee-do loses the bet, and after a month long brain operation, he wakes up to find that they have swapped bodies.
| Production | Han Kil-Ro | Producer |
| Production | Lee Seo-yeol | Producer |
| Directing | Yoon In-Ho | Director |
| Writing | Yoon In-Ho | Writer |
| Production | Kim Sang-yun | Co-Executive Producer |
| Costume & Make-Up | Kim Eun-suk | Costume Design |
| Production | Park Chang-hyun | Co-Producer |
| Camera | Baek Dong-hyeon | Director of Photography |
