Tokyo decides to introduce a police system for schools. The school police will reside on campus at middle schools. Ryuhei Shimada is a detective for the Investigation Unit 1 at the Tokyo Metropolitan Police Department. He always stays cool and calm, but he has a spiteful tongue. Ryuhei Shimada decides to apply for the new school police system and he is assigned to work at Akamine Middle School. That school looks like an ordinary middle school, but there are dark problems at the school including drug use and secret shootings. Meanwhile, Ryoko Asamura is a Japanese language teacher at Akamine Middle School. She is opposed to the school police system. She always takes the side of the students and finds herself in conflict Ryuhei Shimada.

A realistic romance about a woman who wants to be loved and a man who doesn’t know how to express love.

Cha Min Jae is the CEO of MinArt. Although he seems to have it all, he is a character who doesn’t know to give or receive love.

A middle school nurse, Oh Jin was determined to not live a lonely life like her mother, but she realizes that she is not receiving care in her relationship and decides to end it.

This drama tells the story of a man who wanted to be happy even if only for a moment. Kang Soo (Choi Tae Joon) is a loan shark that tries to get by day to day in his depressing reality. His father’s abuse lead to his mother running away from home. Thanks to his father’s crippling debt, he began to work under Hwang Tae Bok (Park Ho San). Happiness wasn’t something that was allowed to him. His only dream is to find his mother and live a happy life. However, this is impossible in his life. No matter how hard he tries, he can’t escape the nightmare of his reality, and when he was about to give up on his life, he sees a flier asking, “Do you want to become happy?” With the smallest inkling of hope, he goes to the research center, so he can experience a bit of happiness. However, he learns that happiness comes at a steep price of 300,000 dollars. He decides to steal the money from Tae Bok. Will he be able to achieve happiness?

Jang Yoon-Ha is the youngest daughter of a chaebol (family owned conglomeration). Even though her family is extremely wealthy, she holds a part-time job at a food market. She hides her background as an heiress and attempts to find a man that loves her for herself

Gu Cheng Ze, the adopted son of the Gu family, is the CEO of Gu Mall Corporation. Mrs. Gu wishes for her biological grandson, Gu Jin Yu to take over the company; and Gu Cheng Ze is tasked to guide the rightful heir towards becoming a respectful businessman. During this time, he meets fashion designer Li Yan Shu and discovers that she is Gu Jin Yu's ex-girlfriend. He decides to hire her aboard to motivate Gu Jin Yu, who still harbors feelings for Li Yan Shu. The plan worked when Gu Jin Yu decides to join the company and pursue her. When Mrs. Gu finds out about Gu Jin Yu's feelings for Li Yan Shu, she was livid and tells Gu Cheng Ze to separate the both of them. This creates an opportunity for Gu Cheng Ze and Li Yan Shu to get closer to each other, and they fell in love. With the help of Li Yan Shu, Gu Cheng Ze overcomes many difficult situations. Gu Jin Yu, after undergoing life-changing experiences, also matures and successfully took over his company.

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A story about public relation officers who start out looking out for themselves and gradually learn to fight side by side to overcome many obstacles.

Wei Zhe has received many awards as the most valuable independent public relations officer in the field. He has many connections, resources and methods to become the best of the best. Jiang Dalin (Tong Liya) is a rookie with a lot of potential. She is upright, competent and has a way with words. The two form a partnership in a race against time.

Genius student Xu Lang (Zhang Chao) who specializes in Criminal Psychology obtained a PhD at the University of Maryland. After returning to China, he joins the public security bureau but is severely injured and even loses his younger brother while solving a case. Seven years later, Xu Lang is the youngest professor of Criminology at the National Police University. Then, his friend Tang Sen (Leon Lee) invites him to return to the field and help out their newly established “Criminal Psychology Team X”. Together, the team of four uncovers unsolved cases and also finds new clues in Xu Lang’s life-changing case from seven years ago.