17 Lowest Rated Yet Popular Korean Series Of 2021

As of December 30th, here are the lowest rated Korean dramas of 2021 on IMDb but popular in terms of casting, audience views, and social media engagement:

1.9/10 | Racket Boys

No. of IMDB votes: 27,000
Synopsis: The series follows the growth of sixteen boys and girls and the challenges faced by badminton club of their school.
Genre: Drama, Sports
No. of episodes: 16
Starring: Kim Sang-kyung, Oh Na-ra, Tang Joon-sang, Son Sang-yeon, Choi Hyun-wook, Kim Kang-hoon, Lee Jae-in, and Lee Ji-won
Written by: Jung Bo-hun
Directed by: Jo Young-kwang and Ahn Jong-yeon
Date: May 31 – August 9, 2021
Network: SBS and Netflix

6.5/10 | Love, Marriage, And Divorce

No. of IMDB votes: 356
Synopsis: Three successful women of the radio industry, each in their 30s, 40s, and 50s, encounter unforeseen problems in their private life. Their households come under threat of collapse due to infidelity.
Genre: Melodrama
No. of episodes: 32 (2 Seasons)
Starring: Sung Hoon, Lee Tae-gon, Park Joo-mi, Lee Ga-ryeong, Lee Min-young, Jeon Soo-kyeong and Jeon No-min
Written by: Phoebe
Directed by: Yoo Jung-joon and Lee Seung-hoon
Date: January 23 – present
Network: TV Chosun and Netflix

6.7/10 | Hellbound

No. of IMDB votes: 17,000
Synopsis: Unearthly beings deliver condemnations, sending individuals to hell and giving rise to a religious group founded on the idea of divine justice.
Based on: Hellbound webtoon by Yeon Sang-ho
Genre: Drama, Dark fantasy
No. of episodes: 6
Starring: Yoo Ah-in, Kim Hyun-joo, Park Jeong-min, Won Jin-ah and Yang Ik-june
Written by: Choi Kyu-sok
Directed by: Yeon Sang-ho 
Date: November 19, 2021
Network: Netflix

6.9/10 | Love Alarm 2

No. of IMDB votes: 4,600
Synopsis: In a world where an app alerts people if someone in the vicinity likes them, Kim Jojo experiences young love while coping with personal adversities.
Based on: Love Alarm by Chon Kye-young
Genre: Romance
No. of episodes: 6
Starring: Kim So-hyun, Jung Ga-ram and Song Kang
Written by: Cha Yeon-soo, Kim Seo-hee, and Kwon Ji-young
Directed by: Kim Jin-woo and Park Yoo-young
Date: March 12, 2021
Network: Netflix

6.9/10 | Reflection Of You

No. of IMDB votes: 154
Synopsis: A thriving painter’s enviable life begins to fray when a bright young woman she once befriended resurfaces as a shell of her former self.
Based on: Someone Who Looks Like You by Jung So-hyeon
Genre: Melodrama, Thriller
No. of episodes: 16
Starring: Go Hyun-jung, Shin Hyun-been, Choi Won-young and Kim Sang-ho
Written by: Yoo Bo-ra
Directed by: Lim Hyeon-wook 
Date: October 13 – December 2, 2021
Network: JTBC and Netflix

7.0/10 | The Silent Sea

No. of IMDB votes: 4,200
Synopsis: During a perilous 24-hour mission on the moon, space explorers try to retrieve samples from an abandoned research facility steeped in classified secrets.
Based on: “The Sea of Tranquility” film in 2014 created by Choi Hang-yong
Genre: Sci-fi, thriller, mystery
No. of episodes: 8
Starring: Bae Doona, Gong Yoo, Lee Joon, Kim Sun-young, and Lee Sung-wook
Written by: Park Eun-kyo
Directed by: Choi Hang-yong 
Date: December 24, 2021
Network: Netflix

7.1/10 | Sisyphus, The Myth

No. of IMDB votes: 3,200
Synopsis: An unfathomable event introduces an engineer to dangerous secrets and to a woman from the future who has come looking for him.
Genre: Drama, Action, Science fiction, Mystery
No. of episodes: 16
Starring: Park Shin-hye and Cho Seung-woo
Written by: Lee Je-in and Jeon Chan-ho
Directed by: Jin Hyuk
Date: February 17 – April 8, 2021
Network: JTBC and Netflix

7.3/10 | Nevertheless

No. of IMDB votes: 3,200
Synopsis: The story of a romance between a man who is annoyed with relationships but likes to flirt and a woman who wants to date but does not believe in love.
Based on: Nevertheless by Jung Seo
Genre: Romance
No. of episodes: 10
Starring: Han So-hee, Song Kang and Chae Jong-hyeop
Written by: Jung Won
Directed by: Kim Ga-ram
Date: June 19 to August 21, 2021
Network: JTBC and Netflix

7.4/10 | You Are My Spring

No. of IMDB votes: 410
Synopsis: A hotel concierge and a psychiatrist with traumatic childhoods form a heartfelt bond while becoming entangled in a perplexing murder case.
Genre: Romance, Drama, Thriller, Mystery
No. of episodes: 16
Starring: Seo Hyun-jin, Kim Dong-wook, Yoon Park and Nam Gyu-ri
Written by: Lee Mi-na
Directed by: Jung Ji-hyun
Date: July 5 – August 24, 2021
Network: TVN and Netflix

7.4/10 | Melancholia

No. of IMDB votes: 162
Synopsis: Set at a private high school, a beautiful story emerges between mathematics teacher and a genius mathematics student.
Genre: Melodrama
No. of episodes: 16
Starring: Im Soo-jung, Lee Do-hyun, Jin Kyung and Jang Hyun-sung
Written by: Kim Ji-woon
Directed by: Kim Sang-hyeob
Date: November 10, 2021 – present
Network: TVN, Viu, and iQIY

7.6/10 | Jirisan

No. of IMDB votes: 620
Synopsis: Set against the backdrop of towering views of Mount Jiri, it depicts the story of rangers and other employees of the Jirisan National Park who climb through the mysterious and unexplored regions of the mountain.
Genre: Drama, Mystery, Fantasy, Action
No. of episodes: 16
Starring: Jun Ji-hyun and Ju Ji-hoon
Written by: Kim Eun-hee
Directed by: Lee Eung-bok
Date: October 23 – December 12, 2021
Network: TVN and iQIY

7.6/10 | Now, We Are Breaking Up

No. of IMDB votes: 853
Synopsis: The series is a story of love and break ups in the romantic world. It illustrates the present scenario in the context of fashion industry.
Genre: Romance
No. of episodes: 16
Starring: Song Hye-kyo, Jang Ki-yong, Kim Joo-hun and Choi Hee-seo. 
Written by: Je In
Directed by: Lee Gil-bok
Date: November 12, 2021 – present
Network: SBS and Viu

7.6/10 | Bulgasal, Immortal Souls

No. of IMDB votes: 185
Synopsis: The story of a woman who repeats death and reincarnation as a person for 600 years and remembers her past lives, and a man who cannot die because he has been an immortal for 600 years.
Genre: Fantasy, Drama, Thriller, Supernatural
No. of episodes: 16
Starring: Lee Jin-wook, Kwon Nara, Lee Joon, Gong Seung-yeon, Jung Jin-young, Park Myung-shin, Kim Woo-seok
Written by: Kwon So-ra, Seo Jae-won
Directed by: Jang Young-woo
Date: December 18, 2021 – present
Network: TVN and Netflix

7.7/10 | Lovers Of The Red Sky

No. of IMDB votes: 595
Synopsis: Set during the Joseon era, Hong Chun Gi is a female painter with genius like painting talent. She is picked as the first female painter of the Dohwaseo. For her, painting is everything. One day, she meets Ha Ram.
Based on: Hong Chun-gi by Jung Eun-gwol
Genre: Drama, Romance, Sageuk, Fantasy
No. of episodes: 16
Starring: Kim Yoo-jung, Ahn Hyo-seop, Gong Myung and Kwak Si-yang
Written by: Ha Eun
Directed by: Jang Tae-yoo
Date: August 30 – October 26, 2021
Network: SBS

7.8/10 | Mine

No. of IMDB votes: 985
Synopsis: The story revolves around strong women who free themselves from the prejudice of the society and find their real ‘mine’. It also peeks into the mysterious lives of wealthy people.
Genre: Romance
No. of episodes: 16
Starring: Lee Bo-young, Kim Seo-hyung, Lee Hyun-wook and Ok Ja-yeon
Written by: Baek Mi-kyung
Directed by: Lee Na-jung
Date: May 8 – June 27, 2021
Network: TVN and Netflix

7.9/10 | My Name

No. of IMDB votes: 14,000
Synopsis: Following her father’s murder, a revenge-driven woman puts her trust in a powerful crime boss — and enters the force under his direction.
Genre: Action, Noir, Crime film
No. of episodes: 8
Starring: Han So-hee, Park Hee-soon, and Ahn Bo-hyun
Written by: Kim Ba-da
Directed by: Kim Jin-min
Date: October 15, 2021
Network: Netflix

7.9/10 | My Roommate Is A Gumiho

No. of IMDB votes: 1,900
Synopsis: The thrilling love story of Shin Woo Yeo, a 999-years-old gumiho who wants to become human, and Lee Dam, who accidentally swallowed his fox bead.
Based on: My Roommate Is a Gumiho (webtoon) by Na
Genre: Drama, Romantic comedy, Fantasy
No. of episodes: 16
Starring: Jang Ki-yong and Lee Hye-ri
Written by: Baek Sun-Woo and Choi Bo-Rim
Directed by: Nam Sung-Woo and Park Joon Hwa
Date: May 26 – July 15, 2021
Network: TVN and iQIY