She Would Never Know (Korean: 선배, 그 립스틱 바르지 마요) is a South Korean television series starring Won Jin-ah, Rowoon, Lee Hyun-wook, Lee Joo-bin, and Lee Kyu-han. Based on the 2017 web novel Senior, Don't Put on That Lipstick by Elise (Elize), it premiered on JTBC on January 18, 2021.

Synopsis

The series tells the story of people working on the marketing team of a cosmetics brand. The love story focuses on the senior/junior relationship of Yoon Song-ah (Won Jin ah) and Chae Hyun-seung (Rowoon). The storyline also include Chae Hyun-seung's sister, Chae Ji-Seung a dress maker, dating Lee Jae-Woon, a BM at the cosmetics company; and his other sister, Chae Yeon-Seung's relationship with her closeted husband, Kang Woo-Hyun and their young daughter, Kang Ha-Eun.

Cast

Main

a senior at KLAR cosmetics 2 years older in work experience and 1 year older in age from Hyun seung. She was in a relationship with BM Lee Jae-shin for 2 years.

an intern who started to like Song-ah since their first encounter when he was still looking for a job. He was the first one to know about Song-ah and BM Lee's relationship.

BM secretly dating Song-ah for 2 years but is engaged to Lee Hyo-joo.

BM Lee Jae-Woon's sister; grand-daughter to the owner of the cosmetic company; engaged to BM Lee Jae-shin.

a BM at the cosmetic company, grandson to the owner of the cosmetic company; starts dating Chae Hyun-seung's sister Chae Ji-Seung.

Chae Hyun-seung's sister; a high-end wedding dress maker; starts dating BM Lee Jae-woon

Supporting

Original soundtrack

Part 1

Released on January 18, 2021 (2021-01-18)
No.TitleLyricsMusicArtistLength
1."Lean on Me" (나는 그래)Kim Ho-kyung1601Kim Jong-wan (Nell)4:02
2."Lean on Me" (Inst.)16014:02
Total length:8:04

Part 2

Released on January 21, 2021 (2021-01-21)
No.TitleLyricsMusicArtistLength
1."I Feel You" (만져져)Kim Ho-kyung1601Sandeul (B1A4)4:53
2."I Feel You" (Inst.)16014:53
Total length:9:06

Part 3

Released on February 1, 2021 (2021-02-01)
No.TitleLyricsMusicArtistLength
1."Pit-A-Pat" (설레)Jeon Geun-hwa (Weeky1)Jeon Geun-hwa (Weeky1), Jo Se-hee (AIMING)Eunha (GFriend)3:40
2."Pit-A-Pat" (Inst.)Jeon Geun-hwa (Weeky1), Jo Se-hee (AIMING)3:40
Total length:7:20

Part 4

Released on February 2, 2021 (2021-02-02)
No.TitleLyricsMusicArtistLength
1."To You" (너에게)ARTMATICARTMATIC, Kiss Me Joy, 최민준Kim Tae-woo3:41
2."To You" (Inst.)ARTMATIC, Kiss Me Joy, 최민준3:41
Total length:7:22

Part 5

Released on February 8, 2021 (2021-02-08)
No.TitleLyricsMusicArtistLength
1."I Live in Your Eyes"TibianTibian, Kim Jung-woo (TOXIC)U Sung-eun4:12
2."I Live in Your Eyes" (Inst.)Tibian, Kim Jung-woo (TOXIC)4:12
Total length:8:24

Part 6

Released on February 15, 2021 (2021-02-15)
No.TitleLyricsMusicArtistLength
1."Child (Daydream)"Song Yang-ha, Kim Jae-hyun, Lee Joo-ahSong Yang-ha, Kim Jae-Hyun, Lee Joo-ahCHEEZE3:11
2."Child (Daydream)" (Inst.)Song Yang-ha, Kim Jae-hyun, Lee Joo-ah3:11
Total length:6:22

Part 7

Released on February 22, 2021 (2021-02-22)
No.TitleLyricsMusicArtistLength
1."Leave Me" (떠나요)LUKA (ARTMATIC), Dope'DougARTMATICBen4:14
2."Leave Me" (Inst.)ARTMATIC4:14
Total length:8:28

Reception

Critical response

Pierce Conran of the South China Morning Post gave the series 2 out of 5 stars, noting that the drama "fizzles out" and ultimately disappoints after a promising start. He criticized the show for failing to capitalize on its office setting, writing that the narrative became a "tepid" and "conventional" office romance that lacked tension. Conran particularly pointed out the "sluggish pace" of the second half, stating that the series struggled to fill its 16-episode run as the conflict between the leads became repetitive and the supporting characters remained "one-dimensional."

Ratings

Average TV viewership ratings (nationwide)
Ep.Original broadcast dateAverage audience share (Nielsen Korea)
1January 18, 20212.024%
2January 19, 20211.562%
3January 25, 20212.427%
4January 26, 20212.127%
5February 1, 20211.917%
6February 2, 20211.954%
7February 8, 20212.079%
8February 9, 20211.497%
9February 15, 20211.816%
10February 16, 20211.590%
11February 22, 20212.007%
12February 23, 20211.736%
13March 1, 20211.762%
14March 2, 20211.668%
15March 8, 20211.614%
16March 9, 20211.728%
Average1.844%
In the table above, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings. This series aired on a cable channel/pay TV which normally has a relatively smaller audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).

International broadcast

The series is available for worldwide streaming exclusively on iQIYI at the same time as the episodes air on JTBC in South Korea, with subtitles in Chinese, English, Thai, Bahasa Malaysia, Vietnamese, Indonesian, Spanish and Arabic.

External links