A truth tale about "Oligosaccharide" written by Crocodile Man. One 'Geun-hyeok' and ten 'Mi-jeongs' put on a sexy adult fantasy! Geun-hyeok and Mi-jeong switch bodies after they have intercourse. Mi-jeong asks Geun-hyeok for something as she's about to get married... Mi-jeong is a call girl who seduces Geun-seok. She's actually a killer. What is she? Tae-sik only drinks black coffee and Mi-jeong likes him. Will they come true? Tae-sik is a loser who uses his wife to rip money off of other men. Geun-hyeok loves her. What will happen to them? What if someone is watching me? Mi-jeong asks detective Geun-hyeok for help... "I have a wife!" Geun-hyeok drinks with his sexy superior Mi-jeong and thing happen. Mi-jeong and her husband have a pile of debt. Mi-jeong goes to her friend Geun-hyeok who can foresee the future. Geun-hyeok is perfect and Mi-jeong loves her husband but she can't help feeling unsteady. Tae-sik leaves on a suicide journey and meets Mi-jeong. They fall in love...
| Actor | Role |
|---|---|
 Kim Nam-wooDong Geun-hyeok | Dong Geun-hyeok |
 Lee Chae-damMi-jeong (Ep. 1: Change) | Mi-jeong (Ep. 1: Change) |
 Suh Zi-eunMi-jeong (Ep. 9: Mask) | Mi-jeong (Ep. 9: Mask) |
 Kim Hwa-yeonMi-jeong (Ep. 3: Indicator) | Mi-jeong (Ep. 3: Indicator) |
 Ra Hee-jeongMi-jeong (Ep. 4: Black Coffee) | Mi-jeong (Ep. 4: Black Coffee) |
 Seo Hwa-yiMi-jeong (Ep. 2: Golden Daughter) | Mi-jeong (Ep. 2: Golden Daughter) |
 Ko WonMi-jeong (Ep. 8: Perfect Husband) | Mi-jeong (Ep. 8: Perfect Husband) |
 Han Se-AhMi-jeong (Ep. 5: Stalker) | Mi-jeong (Ep. 5: Stalker) |
 Jung Jong-wooTae-shik | Tae-shik |
 Hong Seo-backSang-bae | Sang-bae |
 Jo Su-HyunMi-jeong (Ep. 6: Housekeeper) | Mi-jeong (Ep. 6: Housekeeper) |
 Jo Yoo-jinMi-jeong (Ep. 7: Oracle) | Mi-jeong (Ep. 7: Oracle) |
 Yoo Ah-jinHyuna (Ep. 1: Change) | Hyuna (Ep. 1: Change) |
 Ban Min-jeongSo-yeon [Wife] (Ep. 6: Housekeeper) | So-yeon [Wife] (Ep. 6: Housekeeper) |
 Kim Young-heeMadame (Ep. 3: Indicator) | Madame (Ep. 3: Indicator) |