“The One and Only” Kdrama 2021 | Cast | Synopsis | Preview & more

Overview: “The One And Only” Kdrama (also known as “Just One Person”) is a JTBC original drama series that released on 20 December, 2021. It will tell the story of three terminally ill women who met at a hospice and decide to kill one bad guy before they die. During this attempt they meet a truly precious ‘One Person’ in their life. “The One And Only” stars Ahn Eun Jin, Kim Kyung Nam, Kang Ye Won and Park Soo Young (Joy of Red Velvet) in the main cast. It is available to watch online on streaming platform Viki* .

the one and only drama poster

Table of Contents

  • Synopsis
  • Genre
  • Cast
  • Air Time & Schedule
  • Episodes & Ratings
  • Still Cuts
  • Notes & Facts
  • Where To Watch Online?
  • Trailers & Clips


The One And Only” tells the story of three terminally ill women. Pyo In Sook (Ahn Eun Jin) who is insensitive to life and is diagnosed with a terminal illness. Kang Se Yeon (Kang Ye Won), a housewife who led a pretty ordinary life without being noticed by public and Seong Mi Do (Joy/ Park Soo Young), a social media influencer who is close to death ahead of her successful career.

The three meet at a hospice ward. They decide to take down one bad guy before they die but ends up meeting one precious man instead. In Sook meets a police lieutenant, Min Woo Cheon (Kim Kyung Nam). They also get involved in a murder case. Everyone here has a hard life, but it is their journey to discover the true meaning of life.


Romance, Melodrama

Main Cast & Characters

  • Ahn Eun Jin as Pyo In Sook
  • Kim Kyung Nam as Min Woo Cheon
  • Kang Ye Won as Kang Se Yeon
  • Joy as Seong Mi Do

Supporting Cast

  • Go Doo Shim as Yook Seong Ja
  • Jang Hyun Sung as Pyo Kang Seon
  • Do Sang Woo as Cho Shi Young
  • Lee Bong Ryun as Hwang Ma Jin
  • Jang In Sub as Oh Jin Gyu
  • Han Gyu Won as Gu Ji Pyo
  • Han Kyu Won as Oh Young Chan
  • Ahn Chang Hwan as Shin Tae Il
  • Choi Young Woo as Park Seung Seon
  • Lee Soo Mi as Sister Magdalena
  • Yoon Bora as Sister Veronica
  • Seo Yeon Woo as Ha San Ha
  • So Hee Jung as Moon Young Ji
  • Kim Soo Hyung as Lim Ji Hoo
  • Lee Hang Na as Choi Seong Hae
  • Joo In Young as Cha Yeo Wol
  • Sung Byung Sook as Oh Cheon Deok
  • Kim Byung ChunD as Dr. Cho
  • Kim Jung Hwan as Kang Seo Goon
  • Jang Seo Won as Jo Woong Do

Air Time & Schedule

New Episodes every Monday and Tuesday at 11:00 PM KST.

Episodes & Ratings

“The One And Only” Korean drama will have a total of 16 episodes.

Still Cuts (more at Official Site)


Notes & Facts

  • Ahn Eun Jin earlier appeared in Korean drama “The Witch’s Diner” (2021).
  • Kim Kyung Nam earlier starred in Korean drama “Revolutionary Sisters” (2021).
  • Kang Ye Won earlier starred in Korean drama “Drama Stage – Fighter Choi Kang Soon” (2018).
  • Park Soo Young earlier starred in Korean drama “Tempted” (2018).
  • Director: Oh Hyun Jong
  • ScriptWriter: Moon Jung Min

Where To Watch Online?

You can watch “The One And Only” on Viki here.

Trailers & Clips

Episodes 1, 2, 3,….., Highlights

*Drama is subject to regional availability.

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