Young-Jin, a 27-old-lady with natural born pride and desire to succeed and be recognized is not backed up at all by her poor family; rather she needs to take care of all of messes and fusses that her grandfather, father, and younger brother committed. Having nothing to trust except for her own body and soul, she exerts herself to finally be appointed as a body gourd of the Blue House of Korea. At the Blue House, Young-Jin meets Kwanpil, a smart, excellent, cynical and charismatic colleague, who by instinct recognize each other as formidable rivals. They bump into each other at every course of training, extremely competing to beat the other, and what a mischievous fate! They end up being partner to protect Suho, the only son of Mr. President. Suho is an unstoppable rascal with high intelligence and violent nature. Suho is the key person who discloses the past of Kwanpil and realizes the true virtue of family and love. By describing two vivid characters Youn-Jin and Kwanpil, [Formidable Rivals] shows the life of body guards who by nature cannot be spotlighted. This is the story of the others, non-heros, who support protagonists. They also have their own way of life, own value of family and love

Tawan lives with Yuanjai, her aunt-in-law, and her daughter Yardfah as servants. Yhod, her uncle once made promise with his friend Trong to arrange a marriage between their children. Yhardfah refuses it, thinking that Tomorn, Trong's son, is a rustic and poor guy, who is also in a relationship with Bunlaeng. They don't make any money, just spend Yuanjai's money. One day, Tomorn gives his hand to pay a debt for Yuanjai, so she allows Tawan to marry him as Yhardfah. At Tomorn's house, she's always bullied by Sawai, his mother, Gingkaew, nanny of his sister and Sopit, his friend who has a crush on him

After her husband's death, Song Yan qiu has a mental breakdown. Her eldest son goes to live in America with his aunt, her youngest son soon got ill and also suffers from mental illness. It's up to her middle daughter "Wang Zi Liang" to raise the family.

Zhang Bai He and Li Ming Lang are both scions to successful conglomerates that are soon to be engaged. However on the night of their engagement a terrible arson occurs. As a result of the disaster Bai He loses her family while Ming Ling's mother wishes to cancel their marriage. Ming Lang disagrees and brings her home despite his mothers wishes, as they continue to co-habit their feelings towards each other grow steadily, however they must overcome the objections to their marriage and her scheming mother in law.

In the civil war between North and South Korea, the tension within was high, especially when a mission was hooked with national secrets. A black box, hence, because the key to the struggle. Success, would never come so easily. However, amid the brutal fight for the key-the black box of a crashed battleplane, the male and female spy from the two different nations fell in love with each other. They helped each other secretly, in order to complete their corresponding mission, for the sake of loyalty - and love. However, a fatal plane crash of battleplane occured and finally they sacrifice their valuable love and lives for the peace of human world.

A businessman KAR TSAI CHOI (Au YEUNG CHUN WAH, BOBBY) is suddenly appointed the headmaster of a low-ranked middle school by his boss CHOI has to face problems from students, teachers, and the dreadful reputation of the school. He also has to cut expenditure to fix the financial crisis. Teaching staff TSANG CHING LEUNG (DAO TAI YU, MICHAEL) and WONG YEUK SZE (KWOK HO YING, KENIX) are the first two to be sacked. LEUNG thinks that teaching would give him an easy life. Unlike LEUNG, SZE has a very strong commitment to education. The three have different views on school matters, which push them into constant conflicts. But along the way, caretaker KAR WAH BIU (CHUN PUI, PAUL) has made a crucial contribution to the developoment of their relationship. With the efforts, everyone becomes united as never before. Unexpectedly, there is a rumor that the school is going to close

A powerful businessman uses a ship to deliver drugs. A young officer and a female spy have to work undercover in order to find evidence and arrest the businessman. They dislike each other at first but their relationship changes while they're working on the mission.