
2018
16 Episodes
75 min
| Ep 1 | Ep 2 | Ep 3 | Ep 4 | Ep 5 | Ep 6 | Ep 7 | Ep 8 | Ep 9 | Ep 10 | Ep 11 | Ep 12 | Ep 13 | Ep 14 | Ep 15 | Ep 16 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 7.0 | 6.0 | 6.0 | 6.0 | 7.0 | 7.0 | 7.0 | 7.0 | 8.0 | 8.0 | 8.0 | 7.0 | 8.0 | 7.0 | 6.0 | 6.0 |

Doh Kyung-soo
Crown Prince Lee Yool / Won-deuk

Nam Ji-hyun
Hong-sim / Yoon Yi-seo

Cho Seong-ha
Kim Cha-eon

Cho Han-cheul
King

Oh Yeon-ah
Queen Park

Ji Min-hyuk
Prince Seo-won

Kim Seon-ho
Jung Je-yoon

Jung Hae-kyun
Hong-sim's Stepfather

Han So-hee
Kim So-hye

Heo Jung-min
Kim Soo-Ji

Kim Jae-young
Moo-yeon

Jo Hyun-sik
Eunuch Yang

Ahn Suk-hwan
Lord Park Sun-do

Kim Ki-doo
Goo-dol

Lee Min-ji
Kkeut-Nyeo

Lee Jun-hyeok
Park Bok-eun

Jung Ji-hoon
Young Lee Yool

Heo Jung-eun
Young Hong-sim / Yoon Yi-seo

Jeong Joon-won
Young Yoon Seok-ha

Do Ji-han
Dong-joo
Lee Yool falls off a cliff and nearly dies in an attempted assassination. He loses his memory, and wanders for 100 days under a new name and personality. During this period, he meets Hong Sim, head of the first detective agency in Joseon.