“Be;twin” Kdrama 2021 | Cast | Synopsis | Preview & more

Overview: “Be;twin” drama special (also known as “Biteuwin”) is a KBS original special drama series that released on 26 November, 2021. It will tell a love story comes with betrayal between twin brothers and a woman. “Be;twin” stars Sung Yoo Bin and Hong Su Zu in the main cast. It is available to watch online on streaming platform Viki* and Kocowa*.

Table of Contents

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


The special series “Be;twin” tells the story of twin brothers Yun Yi and Hwan Yi who are different from each other but have perfect relation. But this doesn’t last for long when a woman comes between them, leading one brother to betray the other.


Romance, Drama, Melodrama

Main Cast & Characters

  • Sung Yoo Bin as Kim Yun Yi/ Kim Hwan Yi
  • Hong Su Zu as Hong Cheong

Supporting Cast

  • Kim Hyun Mok as Hwan Yi’s friend
  • Shin Joo Hyup as Young Cheol
  • Kim Yi Kyung
  • Kim Young Woong

Episodes & Ratings

“Be;twin” is a single episode special drama.

Still Cuts

Notes & Facts

  • “Be;twin” is one of the 2021 KBS Drama special series. A total of 10 episodes are released each year. Each episode has a different story, cast and director.
  • Sung Yoo Bin earlier appeared in Korean drama “Mr. Sunshine” (2018).
  • Hong Su Zu earlier did a cameo in Korean drama “Lovestruck in The City” (2020).
  • Director: Choi Yeon Soo
  • Screenwriter: Yeom Je Yi

Where To Watch Online?

You can watch “Be;twin” on Viki here,
And Kocowa here.

Trailers & Clips

*Drama is subject to regional availability.

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