| Evergreen | 
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 Promotional poster  | 
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| Hangul | 그남자 오수  | 
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| Lit. | That Man Oh Soo | 
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| RR | Geunamja Osu | 
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| MR | Kŭnamja Osu | 
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|   | 
| Genre |  | 
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| Created by |  | 
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| Written by | Jung Yoo-sun | 
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| Directed by | Nam Gi-hoon | 
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| Starring |  | 
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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 producer | Lee Young-suk | 
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| Running time | 60 minutes | 
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| Production company | IMTV | 
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| Network | OCN | 
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| Release | March 5 (2018-03-05) – April 24, 2018 (2018-04-24) | 
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 Evergreen[1] (Korean: 그남자 오수; RR: Geunamja Osu) is a fantasy South Korean television series starring Lee Jong-hyun and Kim So-eun. It aired on OCN from March 5 to April 24, 2018, every Monday and Tuesday at 21:00 (KST) for 16 episodes.[2][3][4][5][6] 
  Synopsis
 The story of two people who fall in love with each other due to a "cupid" that possesses magical pollen. 
 Cast
 Main
 - Lee Jong-hyun as Oh Soo (27 years old), a promising IT engineer with a PhD in artificial intelligence. He is also a café owner and barista.[7]
  - Kim So-eun as Seo Yoo-ri (27 years old), a local police officer who is her family's breadwinner.
 
 Supporting
 - Kang Tae-oh as Kim Jin-woo (27 years old), Soo-jeong's high school physical education teacher and Yoo-ri's childhood friend.
  - Heo Jung-min as Oh Ga-na (30 years old), Oh Soo's older brother.
  - Park Geun-hyung as Oh Man-soo (80 years old), Oh Soo's grandfather.
  - Lee Hye-ran as Yoon Chae-ri, a veterinarian.[8]
  - Yoo Il as Park Min-ho, Yoo-ri's ex-boyfriend.[9][10]
  - Park Na-ye as Seo Soo-jeong, Yoo-ri's younger sister.
  - Kim Ho-jung
  - Jin Ye-ju as Han Hyo-jin, a woman who falls in love with Oh Soo, and thus tries to win him over.[11]
  - Choi Dae-chul as CEO Nam Ji-seok
 
 Special appearances
  Production
 Filming for the fully pre-produced series was scheduled to start in December 2017.[12] 
 Original soundtrack
 Part 1
 Released on March 5, 2018 (2018-03-05)| Title | Lyrics | Music | Artist | 
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| 1. | "Easy for You (featuring Lee Seung-yeon)" | Ajussen, Sung Hwan | Ajussen, Sung Hwan | Lee Ra-on | 03:05 | 
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| 2. | "Easy for You" (Inst.) |   | Ajussen, Sung Hwan |   | 03:05 | 
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| Total length: | 06:10 | 
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  Part 2
 Released on March 13, 2018 (2018-03-13)| Title | Lyrics | Music | Artist | 
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| 1. | "Being Alone Again" (또 혼자라는 게) | Ajussen | Ajussen | Chaewon, Jinsol (April) | 03:57 | 
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| 2. | "Being Alone Again" (Inst.) |   | Ajussen |   | 03:57 | 
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| Total length: | 07:54 | 
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  Part 3
 Released on March 19, 2018 (2018-03-19)| Title | Lyrics | Music | Artist | 
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| 1. | "Love, Love" | Lee Hwan-wook, Kim Hyun-jeong, Kang Woo-jin, Denis Seo, Kim So-eun | Lee Hwan-wook, Kim Hyun-jeong, Kang Woo-jin, Denis Seo | Kim So-eun | 03:21 | 
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| 2. | "Love, Love" (Inst.) |   | Lee Hwan-wook, Kim Hyun-jeong, Kang Woo-jin, Denis Seo |   | 03:21 | 
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| Total length: | 06:42 | 
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  Part 4
 Released on March 26, 2018 (2018-03-26)| Title | Lyrics | Music | Artist | 
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| 1. | "Strange and Heartbroken" (이상해 맘상해) | Ajussen, Jung Jin-woo | Ajussen | Jung Jin-woo | 03:01 | 
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| 2. | "Strange and Heartbroken" (Inst.) |   | Ajussen |   | 03:01 | 
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| Total length: | 06:02 | 
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  Part 5
 Released on April 2, 2018 (2018-04-02)| Title | Lyrics | Music | Artist | 
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| 1. | "Lost (Prod. by MAKTUB)" | MAKTUB, Lee Ra-on | MAKTUB, Lee Ra-on | Jungyup | 03:25 | 
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| 2. | "Lost (Prod. by MAKTUB)" (Inst.) |   | MAKTUB, Lee Ra-on |   | 03:25 | 
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| Total length: | 06:50 | 
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  Part 6
 Released on April 9, 2018 (2018-04-09)| Title | Lyrics | Music | Artist | 
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| 1. | "Celebrate" | Hi-Graphy (Iconic Sounds), Do Han-se | Maxx Song, Andrew Choi, Shikata Dai, MUSOH, Jake K (Full8loom) | Victon | 03:55 | 
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| 2. | "Celebrate" (Inst.) |   | Maxx Song, Andrew Choi, Shikata Dai, MUSOH, Jake K (Full8loom) |   | 03:55 | 
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| Total length: | 07:50 | 
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  Part 7
 Released on April 16, 2018 (2018-04-16)| Title | Lyrics | Music | Artist | 
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| 1. | "CHU♥ (feat. Purple Rain)" | Whee | Whee | Hwajeong | 03:16 | 
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| 2. | "CHU♥" (Inst.) |   | Whee |   | 03:16 | 
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| Total length: | 06:32 | 
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  Ratings
  Average TV viewership ratings (nationwide)   | Ep.  |  Original broadcast date  |  Average audience share  | 
  | Nielsen Korea[13]  |  TNmS  | 
  | 1  |  March 5, 2018  |  0.4%  |  0.4%  | 
  | 2  |  March 6, 2018  |  0.3%  |  0.5%  | 
  | 3  |  March 12, 2018  |  0.4%  | 
  | 4  |  March 13, 2018  | 
  | 5  |  March 19, 2018  |  0.2%  | 
  | 6  |  March 20, 2018  |  0.3%  |  0.2%  | 
  | 7  |  March 26, 2018  |  0.1%  | 
  | 8  |  March 27, 2018  | 
  | 9  |  April 2, 2018  |  0.1%  | 
  | 10  |  April 3, 2018  |  0.2%  |  0.2%  | 
  | 11  |  April 9, 2018  |  0.1%  |  0.3%  | 
  | 12  |  April 10, 2018  |  0.2%  | 
  | 13  |  April 16, 2018  |  0.3%  | 
  | 14  |  April 17, 2018  |  0.2%  | 
  | 15  |  April 23, 2018  | 
  | 16  |  April 24, 2018  |  0.4%  |  0.4%  | 
  | Average  |  0.2%  |  0.3%  | 
   - 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).
    | 
 References
   - ^ evergreen 본격 '썸타는 드라마'♥ #심장폭격 #들어갑니다 180305 EP.1. Youtube. OCN. February 11, 2018. Retrieved February 19, 2018. 
  - ^ "Lee Jong-hyun and Kim So-eun in OCN "That Man Oh Soo"". HanCinema. Tenasia. Retrieved November 8, 2017. 
  - ^ Hong, Se-young. "'그남자오수' 측 "이종현X김소은 검토중…'멜로홀릭' 후속 논의" [공식입장]". Naver (in Korean). Sports Dong-a. Retrieved November 8, 2017. 
  - ^ Jang, Ah-reum. "이종현x김소은, OCN '그 남자 오수' 확정…2018년 3월 방송 [공식]". Naver (in Korean). News1 Korea. Retrieved November 8, 2017. 
  - ^ ""That Man Oh Soo" Lee Jong-hyun and Kim So-eun's Romance". HanCinema. Nate. Retrieved February 8, 2018. 
  - ^ "Modern-day Cupid's heart to be pierced". Kpop Herald. March 1, 2018. 
  - ^ "Lee Jong-hyun joins "That Man Oh Soo", Cupid of love". HanCinema. The Korea Economic Daily. Retrieved February 4, 2018. 
  - ^ ""That Man Oh Soo" Lee Hye-ran to star with Lee Jong-hyun and Kim So-eun". HanCinema. Top Star News. Retrieved February 4, 2018. 
  - ^ Kim, Sol-ji (December 12, 2017). 서프라이즈 유일, '그남자 오수…' 캐스팅…김소은 남자친구 役(공식). Maeil Business Newspaper (in Korean). Retrieved January 9, 2018. 
  - ^ Kim, Na-hee (December 12, 2017). [공식입장] 서프라이즈 유일, '그남자, 오수…' 합류..김소은 전남친 役. OSEN (in Korean). Retrieved January 9, 2018. 
  - ^ ""That Man Oh Soo" Casts Kim Yeon-seo". HanCinema. Nate. Retrieved February 9, 2018. 
  - ^ "씨엔블루 이종현, OCN '그 남자 오수' 주연 발탁". Naver (in Korean). Sports Kyunghyang. Retrieved November 8, 2017. 
  - ^ "Nielsen Korea" (in Korean). Archived from the original on June 1, 2016. Retrieved March 5, 2018. 
  
  External links
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