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Black Dog: Being A Teacher (블랙독; Beullaek Dok; lit. Black Dog) is a 2019–2020 South Korean television series starring Seo Hyun Jin, Ra Mi Ran and Ha Jun. It aired on tvN's Mondays and Tuesdays timeslot from December 16, 2019 to February 4, 2020.

Synopsis[]

Teachers have a unique ability to leave lasting impressions on their students, but for Go Ha Neul (Seo Hyun Jin), that impression would shape the course of her entire life. After one of her school trips ends in a near fatal accident, Go Ha Neul lives the rest of her life in gratitude towards the teacher who risked his life to save hers. Now a teacher herself, Ha Neul hopes to make as much of a difference in the lives of her students as her teacher once did for her. But the dream she has is difficult to achieve, as the life of a teacher is anything but easy. Still, Ha Neul refuses to give up on her dreams.

Accepting a short-term teaching position at a private school, Ha Neul is determined to do her best to help her students as they face the various trials that exist in the highly competitive private school setting. As she dedicates herself to helping her students grow, Ha Neul begins to grow herself, thanks, in part, to the guidance of Park Sung Soon (Ra Mi Ran), the head of the school's career counseling department, and Do Yeon Woo (Ha Jun), a Korean language teacher with an unwavering passion for teaching.

With Sung Soon as her mentor and Yeon Woo as her guide, Ha Neul finds the strength to overcome the challenges of teaching in today's cutthroat education system, growing both as a person and a teacher, as she dedicates herself to helping her students make their own dreams come true.[1]

Cast[]

  • Seo Hyun Jin as Go Ha Neul
    • Ryu Ji Eun as Young Go Ha Neul
After a teacher saved her when she was a student, Ha-neul decided to become one herself. Years later, she starts working as a temporary teacher at a private high school and, through struggles, grows as a teacher and as a person.
  • Ra Mi Ran as Park Sung Soon, an experienced teacher who becomes Ha Neul's mentor.
She is a Korean language teacher and Head of College Admission, and is known as a workaholic among the students.
  • Ha Joon as Do Yeon Woo, a Korean language teacher who is very popular among students.

  • Lee Chang Hoon as Bae Myung Soo, a career consultant teacher
  • Jung Hae Kyun as Moon Soo Ho, Ha Neul's uncle and the head of the school affairs department in office politics
  • Park Ji Hwan as Song Young Tae, a 3rd grade senior teacher
  • Yoo Min Kyu as Ji Hae Won, a term teacher
  • Jo Sun Joo as Kim Yi Boon, Ha Neul's subject partner
  • Heo Tae Hee as Ha Soo Hyun, a teacher
  • Ye Soo Jung as Yoon Yeo Hwa, a career consultant teacher
  • Kwon So Hyun as Song Ji Sun, a Korean language teacher
  • Kim Hong Fa as Byun Sung Joo, the principal of Daechi High School
  • Lee Yoon Hee as Lee Seung Taek, the vice-principal of Daechi High School
  • Woo Mi Hwa as Han Jae Hee, a math and creative experience teacher
  • Lee Jang Won as Son Dong Ha, an after school program head teacher and geography teacher
  • Kim Seung Hoon as Cha Tae Ho, the director of Information Mathematics and Orthodoxy
  • Lee Eun Saem as Jin Yoo Ra, a student in Ha Neul's class
  • Tae In Ho as Kim Young Ha, a term teacher and Ha Neul's former teacher
  • Lee Hang Na as Song Young Sook, Young Ha's wife
  • Kim Jung Young as Moon So Nyeo, Ha Neul's mother
  • Maeng Sang Hoon as Go Sung Chul, Ha Neul's father
  • Baek Eun Hye as Song Chan Hee, an administration officer
  • Im Hyun Sung as Yoo Jae Ho, the director of administration
  • Park Ji Hoon as Goo Jae Hyun, a student in Ha Neul's class

  • Soundtrack[]

    Main Article: Black Dog OST

    Episodes[]

    In this table, the blue numbers represent the lowest ratings and the red numbers represent the highest ratings.

    Episode Aired Title Average audience share (AGB Nielsen)
    Nationwide Seoul
    Episode 01 December 16, 2019 "Welcome to Daechi High School" 3.331% 3.574%
    Ha Neul has witnessed the cold reality of being a short-term teacher herself. The teacher who saved her life at an unfortunate school field trip accident was never fully compensated nor recognized by the school. However, she aspires to become a teacher one day and takes her first step into her first school. It’s Daechi High School.
    Episode 02 December 17, 2019 "Course Partners" 4.412% 5.064%
    Ha Neul is partnered up with Daechi High School's biggest freak show, Kim Yi Boon. She's a blunt and very rude teacher who already took advantage of Ha Neul's good-heart by forcing Ha Neul to share her lesson files she's been working on. Will Ha Neul be able to cooperate with her course partner in peace?
    Episode 03 December 23, 2019 "New Method of Teaching" 4.411% 5.212%
    Ha Neul is asked to make the class materials for Yi Boon's class. Ha Neul comes up with a novel idea of teaching students which Yi Boon cannot understand. Meanwhile, upon Sung Soon's request, an admissions officer from Yeonhui University comes to visit Daechi High School, but he turns out to be a newbie who doesn't know a thing about the university admissions system.
    Episode 04 December 24, 2019 "Who Will Leave the School?" 4.349% 4.834%
    For a permanent teacher who's coming back to the school from her vacation, one short-term teacher must leave the school. Everyone believes that it should be Ha Neul. Because of Song Young Tae, short-term teachers are in a tight spot in front of the students. Meanwhile, Soo Ho decides to track down teachers' IP addresses to find out who posted about the corruption at Daechi High on the website.
    Episode 05 December 30, 2019 "Unexpected Offer" 5.483% 6.004%
    Sung Soon is confident that she can get exclusive information about Hankuk University admissions using her connection. However, things aren't going smoothly. Ha Neul is given an unexpected offer by Young Tae. Meanwhile, Hae Won hears that Soo Ho has been suspecting him and trying to find out his laptop IP address.
    Episode 06 December 31, 2019 "Ms. Ko, the Whistle-Blower" 4.732% 5.126%
    After failing to get exclusive information about Hankuk University admissions using a connection, an issue arises about the advanced class. Ha Nuel finds out that there are advantages to specific students who got to learn the curriculum in advance. Knowing that the flaws exist both in the school system and teachers, Ha Nuel decides to tell everyone about them for students. Meanwhile, Ha Neul comes across what other teachers are doing with their after-school classes.
    Episode 07 January 6, 2020 "Midterm Exams" 4.797% 4.848%
    Ha Neul tries to convince Hae Won to speak to Soo Hyun about his exam questions for the upcoming midterms. However, everyone tells Ha Neul that it is better to keep quiet and not stir up trouble. Meanwhile, Hae Won falls ill during the height of the Midterm prep season. After the exams, some students file a complaint about a question on the Senior Korean test.
    Episode 08 January 7, 2020 "The Banana Incident" 5.055% 5.352%
    Midterms are over, but some of the seniors have a complaint about one of the questions on the Korean test. All of Daechi High's Korean teachers get together to discuss what to do about the question. They come to a conclusion after a heated debate, but Ha Neul can't seem to let go of her unease. Ha Neul, Yeon Woo, and Hae Won plan a secret meeting.
    Episode 09 January 13, 2020 "The College Applications Informational" 4.393% 4.941%
    A former Daechi High School teacher returns to the school as an admissions officer from Hankuk University. She is supposed to help out with the College Applications Informational, but everyone doubts whether she will help out wholeheartedly. Meanwhile, the news that an actual admissions officer will be speaking at the Informational attracts much attention from other teachers.
    Episode 10 January 14, 2020 "The Student Records" 4.339% 4.457%
    Summer break is over, and the student records season is officially in full swing. As Ha Neul is busy filling out student records, she notices students being unusually friendly out of the blue. At first, Ha Neul doesn't think much of it and is happy that her students like her. However, what she learns from Myung Soo comes as quite a surprise.
    Episode 11 January 20, 2020 "Early Admissions" 4.492% 4.744%
    As Daechi High School announces the openings for permanent teacher positions, Hae Won discovers who actually got hired through nepotism at the beginning of the school year. Meanwhile, the Early Admissions season is in full swing and Daechi High School is buzzing about which two students will get the recommendations for Hankuk University.
    Episode 12 January 21, 2020 "CSAT and Permanent Teacher Exams" 5.085% 5.563%
    Daechi High's seniors finally take their CSATs as Ha Neul and Hae Won prepare to take their Permanent Teacher Exams. The early admissions results are out, and everyone is curious to see if someone from Daechi High will finally get accepted to Hankuk University. Meanwhile, the debate for whom to hire for the Korean department seems to have no end in sight.
    Episode 13 January 27, 2020 "Winter Vacation and New Positions for the Teachers" 3.983% 4.026%
    Ha Neul goes to Lady Song's noodle shop and runs into the boy who caused the accident. It turns out that he is a senior at Daechi High School. Meanwhile, Sung Soon is busy taking care of her son who is going into middle school and dealing with politics at Daechi High. Principal Byun offers her the position of head of School Administration and Sung Soon must make a choice.
    Episode 14 January 28, 2020 "A New School Year Begins" 4.428% 4.662%
    The Office of Education implements a new combined curriculum for both liberal arts and the sciences which confuses the students and teachers of Daechi High School. Meanwhile, Ha Neul meets Bo Tong again at school. In an attempt to understand Bo Tong's unpredictable behavior, Ha Neul finds out what happened between him and Sung Soon in the past.
    Episode 15 February 3, 2020 "Dropping Out" 4.110% 4.261%
    Bo Tong submits his withdrawal notice and Ha Neul contemplates what to do. Meanwhile, the teachers receive their evaluations and performance-based bonuses from the previous year which causes some to voice complaints. On top of that, Icarus receives backlash from students and parents alike, which leads to a vote to decide the club's future.
    Episode 16 February 4, 2020 "Leave of Absence" 4.658% 4.647%
    As the College Advisory Group prepares a new arts-science fusion class, Sung Soon has a fight with her husband about their careers. Meanwhile, Yeon Woo receives harsh criticism about a creative class he tried out which puts him in a deeper slump. Time goes by and Ha Neul retakes her Teacher Certification Exams.
    Average 4.504% 4.832%

    [2] This drama 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).

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