Torako is a mysterious, but excellent private tutor. She has big ambitions and works to achieve her goal. She takes private tutoring jobs from kids of rich families and makes connections, while saving money. She currently has 3 students. Her 3 students and their mothers hope to have the students enter prestigious schools, while they must deal with their own unique problems.

Haga Ineko stopped being a school teacher for she was about to get married. When she is suddenly dumped by her to-be husband, she loses her way, and starts drinking. One day, an old friend approaches with a job offer. She would be a substitute teacher in a class on which several teachers gave up without an apparent reason. She reluctantly takes the job only to discover that there are several brutal bullying cases inside the class. Even she eventually starts being anonymously threatened due to her opposing posture against such cases. She now has to identify and reprimand them while at the same time protecting weaker students. The word "Hagane" on the title is a nickname which comes from Haga (her surname) and Ne (from Ineko, her name), but is actually a pun with the actual word hagane (which means steel, denoting how she must be in order to resist as a teacher).

This is a story of two close families that promised and agreed of their children's marriage before they were born. Madam Lamphao, the head of Wichanee family, has two daughters: An elder daughter called Rojanasnai and her youngest Romereuthai. The elder sister already has a lover named Prawut Wuttisak. While Madam Preme, the head of Pathamakul family, has only one son called Paat Pathamakul. When the time came and the youngest daughter Romereuthai learned that she had to marry a son of her mother's friend, she was dissatisfied and opposed it because in her opinion Paat is a rustic, old-fashionable fool. So she forced her sister to marry him instead but Rojanasnai also defied it since she had her lover. In order to get her sister consent to get married Romeruethai used her last choice by revealing the truth that Rojanasnai was not her biological sister but an orphan that her mum adopted at the very young age. Overwhelmed with consciousness of gratitude Rojanasnai finally accepted the ma

"New Year's Day is the beginning of new things. Some relationships start on this day, while some have to see it end."

Although this world is full of toxic love, good and healing love still exists. As soon as a clock shows 00:00 on January 1st, someone smiles and whispers "Happy New Year" to their lover with the hope of walking together. Another person whispers the same thing to the one who no longer has a chance to hear it. One couple uses love and goodness as a life compass, even when they face difficulty. Another couple wants to have fun and put their good life on the line. Stay tuned for the stories of two couples with different attitudes towards love and goodness.

Three years ago, a disappearance case, known as the "Joker Case," was suddenly closed without being solved. Ichiro Kunishita, an investigator from the Public Security Bureau of the Tokyo Metropolitan Police Department who was called for a reunion of the investigation, is ordered to take on a completely different mission. He is assigned to spy on and monitor Shiro Hanabusa, the young head of a designated gang clan. He is said to be a man of many mysteries who has risen to the rank of Wakagashira (young leading subordinate in yakuza group) since he joined the gang three years ago. In the course of his mission to get close to Shiro, Ichirou learns a shocking fact, and decides to make a fake "lover's contract" with him. Their secret investigation into the case gradually leads them to an incident that will shake the nation and their destiny.

Adapted from the manga "Kei×Yaku: Abunai Aibou" (ケイ×ヤク －あぶない相棒－) by Kaoruhara Yoshie.

A rookie cop has gone undercover without the knowledge of the deputy captain of the police. They are pushed into opposite camps due to misunderstanding, thus marking the start to a cat-and-mouse game.

Master and apprentice begin in their hot-blooded journey to fighting crime when the cold lone ranger meets the "little fresh meat." Xu Wu Shuang, a detective in his thirties, heads up the criminal division of the Suicheng police department. He is extremely rational and would strike without hesitation once he has his sights set on a target. Meanwhile, rookie cop Wang Dai Yu has the heart to do good yet things do not always work out. He goes by the book too much and has a much soft personality. Being a fuerdai, he could have inherited his family's riches yet chose to be a public servant.

Special Mission Task Team – is not considered as important as it might sound. It is positioned in the lowest section of the Metropolitan Police Department and so-called as the "oversized garbage dealer". Sugishita Ukyo is a head of this Special Mission Task team. As people rumor that anyone who worked under Ukyo eventually leaves the office, he is called "the grave keeper of human resource". However, there was another reason why people call him in this name. When Ukyo fist transferred to this section with his secret mission, all of his direct reports died mysteriously. Somehow, the police have sealed this incident from further investigation.

The story talks about the people who work behind-the-scenes of the entertainment industry, such as PR teams, managers, and reporters, and clean up the messes created by the stars. It tells of Oh Han Byul, the head of the PR team at an entertainment agency, and the flawless top star Gong Tae Sung, who is also her natural enemy. They bicker all the time, but soon also develop feelings for each other.