The story tells about two girls who envy of each other due to differences in identities and backgrounds, but after exchanging souls, they each discover their own brilliance and re-understand their own value.

A web drama about an ordinary high school club that takes a class trip to the sea where the series then focuses on the relationships and happenings between the classmates.

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

Several princesses with different temperaments reside in the palace of King Jing of Moxuan. King Jing favors Princess Yi for her gentle and kind demeanor. Not one to fight with others, she is virtuous, often sympathetic to the mansion maids, never beating nor scolding them. For her part, Princess Yi wholeheartedly returns the King’s affections.

King Jing later comes to value and admire the Princess for withstanding various hardships and courageously facing life and death challenges. Conversely, when King Jing faces adversity, Yi wisely finds a solution that brings him time to win the final victory.

Visiting Queen-Dowager Wangjin too recognizes the worth of the Princess, decreeing her a full concubine. Jealous of Concubine Yi, the other princesses plot her demise. To keep the peace in the palace, Yi remains tolerant for a time. But after repeated persecution, she retaliates by ridding the kingdom of these harmful women.

Now both she and King Jing play roles in court affairs that attract discontent. Cheng Wang, envious of King Jing and thinking of him wholly inferior to himself, overestimates his talents. Trouble looms as he plots to kill his rival, steal the throne and declare Yi his Queen.

The story of handsome lifeguard Bao Yu and Meng Mei, owner of the Hero dog called Xiao Qi, who befriends and unites together to help small dogs.

Like the boy who cried wolf, Xia Zhi Xing had lied one too many times. So when she did tell the truth, nobody believed her except for the most unlikely person, Zhong Tian Qi, a runaway young master of a jewelry empire. His belief in her inspired her to become a real jewelry designer instead of a lying, scheming jewelry con artist. In the process, she taught him the real value of jewels that he is destined to inherit.