Jang Hyun Sung

A boy falls to his death at school, but Ok Chan Mi does not believe that her twin brother, Park Won Seok, committed suicide. She then transfers to her brother's school, Yongtan High, and meets Ji Soo Heon, who witnessed her brother's death. During that time a "hero," who avenges bullied students, appears at Yongtan High. Chan Mi speculates that it may be connected to her brother and starts looking for this hero. (Source: Hulu)

An ace emergency care doctor loses his license after being scapegoated in a malpractice case caused by the hospital director. Determined to get revenge, he becomes a prison internist, aiming to befriend powerful inmates, tycoons, celebrities, athletes, and replace the prison’s chief doctor to build influence and take down the hospital that betrayed him. (Source: MyDramaList)

Yeom Sang Soo, determined to become a public official, faces misfortune with every case and conflicts with his superiors. His co-worker, Han Jung Oh, is a female officer fighting male chauvinism. Together, they work to solve incidents. (Source: MyDramaList)

A sexual scandal between a math teacher and a student in a prestigious high school ends in tragedy. Four years later, they meet again, now both adults, to reveal the corruption in school and to regain one's reputation as a teacher. Ji Yoon Soo is a high school math teacher with a bright smile and a positive impression of others. She is a hard-nosed and stubborn person who has to push ahead with the decisions she has made. She is a math geek who loves solving difficult problems and teaches students to purely love math. Baek Seung Yoo is emotionless and has no light in his eyes. He used to be a math genius who appeared on a quiz program at the age of five and surprised the world by solving college-level math problems. He was admitted to MIT at the age of 10 but dropped out at the age of 12, and suddenly disappeared. (Source: CJ ENM)

The story seeks to find an answer in the secretive relationships we hold in today’s society. Jeong Seon is a competent and successful career woman who works as a deputy manager at Sung Woon Department Store. Her job as a member of the VIP Management Team is to satisfy the top one percent of customers who are the special VIPs and VVIPs. Not only is she professional at work, but she has a happy household with a wonderful husband, Seong Jun. However, one day she receives an anonymous text message. It says that her romantic husband is having an affair with someone at the office. Anxious to lose everything she has, she desperately studies the office and her co-workers to find out the woman Seong Jun is seeing. In the course of events, secrets behind each of the workers at the VIP Management Team are revealed. Will Jeong Seon find out the truth behind the anonymous text message? (Source: Viu)

Pyo In Sook, abandoned by her parents and raised by her grandmother, works at a public bathhouse, living a tough and emotionless life. After being diagnosed with a terminal illness, she faces her mortality without reaction. At hospice, she meets two women, social media influencer Seong Mi Do and lonely housewife Kang Se Yeon, and a contract killer, Min Woo Cheon. Each woman plans to take revenge on someone who wronged them, but as they bond, their anger fades. In Sook’s developing feelings for Woo Cheon make her reconsider her plans. (Source: MyDramaList)

Secret Door follows the conflict between King Yeong Jo and Crown Prince Sa Do in the longest reign in Joseon history, 52 years. King Yeong Jo pursues strong royal authority, while Crown Prince Sa Do insists on equality for all.