| Second 20s | 
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| Also known as | Second 20'sTwenty AgainSecond Time Twenty Years OldSecond Twenty
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| Genre |  | 
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| Written by | So Hyun-kyung | 
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| Directed by | Kim Hyung-shik | 
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| Starring |  | 
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| Composer | Kim Hyun-jong | 
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| Country of origin | South Korea | 
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| Original language | Korean | 
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| No. of episodes | 16 | 
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| Executive producers | Lee Jin-seokBae Yong-byung
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| Producers |  | 
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| Cinematography | Kim Kyung-chulAhn Jae-hyun
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| Editors | Kim Yoo-mi Kim Soo-hyun
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| Running time | 60 minutes | 
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| Production companies |  | 
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| Network | tvN | 
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| Release | August 28 (2015-08-28) – October 17, 2015 (2015-10-17)
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 Second 20s[1] (Korean: 두번째 스무살; RR: Dubeonjjae seumusal; lit. 'Twenty Years Old for the Second Time') is a 2015 South Korean television series starring Choi Ji-woo, Lee Sang-yoon, Choi Won-young, Son Na-eun and Kim Min-jae.[2][3][4][5][6][7][8] It aired on tvN from August 28 to October 17, 2015, on Fridays and Saturdays at 20:30 (KST) for 16 episodes.[9][10][11] 
  Synopsis
 Ha No-ra once dreamed of becoming a dancer, but she unexpectedly became pregnant at age 19 and had to quit school and get married. For the next two decades, her life revolved around being a housewife and mother. Now 38 years old and on the brink of divorce, No-ra is diagnosed with terminal pancreatic cancer and given a six-month prognosis. So she decides to go back to school and experience college life for the first time.[12] Among the incoming freshmen are her own 20-year-old son Kim Min-soo and his girlfriend Oh Hye-mi, who are horrified to have No-ra as their classmate.[13] Unbeknownst to No-ra, her intellectual snob husband Kim Woo-chul recently accepted a job teaching psychology at the same university, and her prickly theater arts professor turns out to be Cha Hyun-seok, who had a crush on No-ra in high school. 
 Cast
  Original soundtrack
  Part 1
 Released on August 29, 2015 (2015-08-29)| Title | Artist | 
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| 1. | "Wrongful Encounter" (잘못된 만남) | Honey G | 3:57 | 
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| 2. | "Wrongful Encounter" (Inst.) |  | 3:57 | 
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| Total length: | 7:34 | 
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Part 2
 Released on September 4, 2015 (2015-09-04)| Title | Artist | 
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| 1. | "Why Don't Love Me?" (날 사랑하지 않는다) | Roy Kim | 4:04 | 
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| 2. | "Why Don't Love Me?" (Inst.) |  | 4:04 | 
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| Total length: | 8:08 | 
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Part 3
 Released on September 11, 2015 (2015-09-11)| Title | Artist | 
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| 1. | "Oh You, Yeah You" (오유야유) | Yoo Sung-eun | 3:03 | 
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| 2. | "Oh You, Yeah You" (Inst.) |  | 3:03 | 
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| Total length: | 6:06 | 
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Part 4
 Released on September 18, 2015 (2015-09-18)| Title | Artist | 
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| 1. | "Beautiful Days" (아름다운 시절) | Byul | 3:49 | 
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| 2. | "Beautiful Days" (Inst.) |  | 3:49 | 
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| Total length: | 7:38 | 
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Part 5
 Released on September 18, 2015 (2015-09-18)| Title | Artist | 
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| 1. | "Good Day" (좋은날) | Jung Joon-il | 4:33 | 
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| 2. | "Good Day" (Inst.) |  | 4:33 | 
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| Total length: | 9:06 | 
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Part 6
 Released on October 2, 2015 (2015-10-02)| Title | Artist | 
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| 1. | "Star" (별) | Kim Min-jae and Solar (of Mamamoo) | 3:40 | 
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| 2. | "Star" (Inst.) |  | 3:40 | 
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| Total length: | 7:20 | 
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Part 7
 Released on October 9, 2015 (2015-10-09)| Title | Artist | 
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| 1. | "Cuckoo" | Jannabi | 3:08 | 
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| 2. | "Cuckoo" (Inst.) |  | 3:08 | 
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| Total length: | 7:16 | 
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Ratings
 In this table, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings. 
    | Ep. | Original broadcast date | Average audience share | 
  | AGB Nielsen | TNmS | 
  | Nationwide | Nationwide | 
  | 1 | August 28, 2015 | 3.57% | 4.4% | 
  | 2 | August 29, 2015 | 3.16% | 3.6% | 
  | 3 | September 4, 2015 | 4.66% | 4.4% | 
  | 4 | September 5, 2015 | 4.62% | 5.2% | 
  | 5 | September 11, 2015 | 4.38% | 5.1% | 
  | 6 | September 12, 2015 | 4.90% | 5.6% | 
  | 7 | September 18, 2015 | 4.96% | 4.9% | 
  | 8 | September 19, 2015 | 6.27% | 6.0% | 
  | 9 | September 25, 2015 | 5.91% | 5.8% | 
  | 10 | September 26, 2015 | 5.53% | 5.2% | 
  | 11 | October 2, 2015 | 5.09% | 5.4% | 
  | 12 | October 3, 2015 | 6.97% | 5.9% | 
  | 13 | October 9, 2015 | 6.08% | 6.9% | 
  | 14 | October 10, 2015 | 7.06% | 6.3% | 
  | 15 | October 16, 2015 | 6.50% | 6.1% | 
  | 16 | October 17, 2015 | 7.0% | 7.2% | 
  | Average | 5.42% | 5.5% | 
 - This drama airs on cable channel/pay TV which has a relatively small audience compared to free-to-air TV/public broadcasters (KBS, SBS, MBC and EBS).
Awards and nominations
    | Year | Award | Category | Recipient | Result | 
  | 2016 | tvN10 Awards | Best Actress |  | Nominated | 
  | Two Star Award | Nominated | 
 
 References
   - ^ Second 20s. Single release on Second 20s Ending! Second 20s Ep 16. YouTube. tvN Drama. Retrieved December 21, 2017. 
- ^ Ghim, Sora (9 July 2015). "Choi Ji Woo Is Cast As The Female Lead For New tvN Drama". BNTNews. Archived from the original on 27 August 2018. Retrieved 20 August 2015. 
- ^ Lee, Nancy (9 July 2015). "Choi Ji Woo Confirmed for New tvN Drama". enewsWorld. Archived from the original on 23 December 2015. Retrieved 20 August 2015. 
- ^ Jin, Min-ji (10 July 2015). "Choi Ji-woo to play a college student Actress". Korea JoongAng Daily. Archived from the original on 12 July 2015. Retrieved 20 August 2015. 
- ^ Lee, Nancy (20 July 2015). "Apink's Son Na Eun to Join Choi Ji Woo in Upcoming tvN Drama". enewsWorld. Archived from the original on 4 March 2016. Retrieved 20 August 2015. 
- ^ Ghim, Sora (5 August 2015). "Second Time Twenty Years Old Releases Its Official Poster". BNTNews. Archived from the original on 25 September 2015. Retrieved 20 August 2015. 
- ^ Lee, Hoo-nam (11 August 2015). "As audiences age, so do small-screen stars". Korea JoongAng Daily. Archived from the original on 23 September 2015. Retrieved 20 August 2015. 
- ^ Kwon, Ji-youn (12 August 2015). "Veteran actresses experiment with characters". The Korea Times. Archived from the original on 12 August 2015. Retrieved 20 August 2015. 
- ^ Lee, Hye-won (17 August 2015). "tvN releases teaser poster for Choi Ji-woo drama". K-pop Herald. Archived from the original on 25 September 2015. Retrieved 20 August 2015. 
- ^ "Twenty Again adds up for Choi Ji-woo". The Korea Times. 30 August 2015. Archived from the original on 27 August 2018. Retrieved 1 September 2015. 
- ^ "Twenty Again tops 6 percent in ratings". The Korea Times. 20 September 2015. Archived from the original on 27 July 2023. Retrieved 20 September 2015. 
- ^ Ghim, Sora (12 August 2015). "Choi Ji Woo Returns To College". BNTNews. Archived from the original on 23 September 2015. Retrieved 19 August 2015. 
- ^ Ghim, Sora (14 August 2015). "Son Na Eun And Kim Min Jae Are A Fresh Campus Couple". BNTNews. Archived from the original on 15 August 2020. Retrieved 20 August 2015. 
  External links
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|   Category Currrent programming Television dramas (2006–2019·2020 onward) Variety shows TVING original programming
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