Starring
Kim Rae-wonLee Da-heeKim Sung-ohPark Hyuk-kwonHwang Jae-YeolKim Sang-ho
Ratings per Episode
Votes per Episode
L.U.C.A.: The Beginning Episode Ratings Heatmap
| Avg | E1 | E2 | E3 | E4 | E5 | E6 | E7 | E8 | E9 | E10 | E11 | E12 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 8.6 | 8.7 | 8.6 | 8.5 | 9.0 | 8.7 | 8.7 | 8.7 | 8.9 | 8.1 | 8.3 | 8.5 | 7.9 |
Download Infographic
About
Ji-O has a special power and a secret, but he doesn't know who he really is. He is chased by mysterious figures, while he tries to find answers to numerous questions that surround him. Goo-Reum is a detective. When she decides on a course of action, she won't change no matter what. Her parents disappeared when she was only a young child. Goo-Reum chases after the truth behind her parents' disappearance. She meets Ji-O and her life changes.
All Seasons
▼
Season 12021
8.62861212h 32m
| Ep | Title | Rating | Yours | Votes | Runtime | |
|---|---|---|---|---|---|---|
| ▶ | 1 | Episode #1.1 | 8.7 | 32 | 75 min | |
| ▶ | 2 | Episode #1.2 | 8.6 | 29 | 60 min | |
| ▶ | 3 | Episode #1.3 | 8.5 | 28 | 68 min | |
| ▶ | 4 | Episode #1.4 | 9.0 | 27 | 77 min | |
| ▶ | 5 | Episode #1.5 | 8.7 | 24 | 74 min | |
| ▶ | 6 | Episode #1.6 | 8.7 | 25 | 68 min | |
| ▶ | 7 | Episode #1.7 | 8.7 | 24 | — | |
| ▶ | 8 | Episode #1.8 | 8.9 | 27 | 69 min | |
| ▶ | 9 | Episode #1.9 | 8.1 | 17 | 64 min | |
| ▶ | 10 | Episode #1.10 | 8.3 | 18 | 67 min | |
| ▶ | 11 | Episode #1.11 | 8.5 | 15 | 67 min | |
| ▶ | 12 | Episode #1.12 | 7.9 | 20 | 63 min |
Full Cast & Crew
Cast
Kim Rae-won Ji-oh
Lee Da-hee Goo-reum from the Sky
Kim Sung-oh Lee Son
Park Hyuk-kwon Kim Cheol-soo
Hwang Jae-Yeol Kim Yoo-cheol
Kim Sang-ho Choi Jin-hwan
Ahn Nae-sang Ryoo Joong-kwon
Jin Kyung Hwang Jeong-ah
Jung Da-Eun Choi Yoo-na
Ahn Chang-hwan Won-yi
Similar Series
The Gifted
41K 29 2017–2019
Social commentary · Serialized
The Copenhagen Test
8K 8 2025–2025
Mystery box · Serialized · Tense
Ultra Galaxy Fight: The Absolute Conspiracy
134 10 2020–2021
Action · Fantasy · Sci-Fi
Power Rangers Unworthy
117 6 2018–present
Action · Fantasy · Sci-Fi
Atomic Kingdom
49 27 2013–present
Action · Fantasy · Sci-Fi
Commander land
42 1 2025–present
Action · Fantasy · Sci-Fi
Chosen Kin Origins
26 5 2017–present
Action · Fantasy · Sci-Fi
Scorpion Girl
26 2017–present
Action · Fantasy · Sci-Fi
The Battle Below
21 5 2012–present
Action · Fantasy · Sci-Fi
Pintados
19 1 1999–present
Action · Fantasy · Sci-Fi
Kun Lun Gui
11 50 2020–present
Action · Fantasy · Sci-Fi
The Eye of Horus
9 19 2013–present
Action · Fantasy · Sci-Fi