Suk-hee's mother is remarried to a man who has a son a year senior than Suk-hee. The two don't get along well first, but soon they grow intimate. Suk-hee learns, though, that she needs to give up her love for her mother's happiness. One day she leaves her mother and her new family, and goes on her way to her hometown, where she sees a Zelkova tree.

While Professor Yun, one of the world's leading authority on genetics, is abroad, Oh In-cheol and his fiancee Yun Jin-suk take the professor's papers from his laboratory. In-cheol and Jin-suk are researching the principle of the chlorophyll and a pill that can make people invisible. In-cheol becomes invisible and catches bank con-men and child kidnappers, etc. He works hard to expose society's evil and he is pasted all over newspapers. However, the criminals follow him and discover his identity. They steal his invisible pills. The criminals become invisible and they go on to commit their crimes such as robbing banks. But they don't have any pills to reverse the effects. The criminals ultimately come to In-cheol looking for the reverse pills when they are caught by the police.

A remote fishing island is home to a largely female-population. Men are frequently lost to the ocean as stubbornly going out to sea in the face of great danger. Young widows are made and quickly learn the hardships of life.

In hope of growing his power, a warlord hires a group of 'Devil Fighters' to kill whoever gets in his way. When a group of martial arts experts does just that, it seems a bloodbath is unavoidable.

Magistrate Hwang's daughter Jin-yi, is jilted before her wedding because a shoe maker was smitten with her and commits suicide. Jin-yi becomes a courtesan, and becomes famous for her wits and beauty. She falls for Byuk Kye-su, but he's chosen to be an envoy to a far off kingdom. When he leaves she feels so betrayed she takes to a life of wandering. She meets Lee Saeng, a destitute scholar, and stays with him until she discovers he's going to sell her to a group of itinerate clowns. Instead, she joins them willingly.

A newlywed wife, Ji-sun moves to her husband's village in a rural area called Sambatgol where it is customary to have glossy charades, incompetence is prolific, and thus poverty is endemic. She starts to endeavor to break down all these vices. Her family and neighbors point accusing fingers at her first, but soon they are influenced by her to combine forces with her. In the meantime, longtime absent father of Gang-du returns to hids wife, who is Ji-sun's strong supporter and the chairperson of the village women's association. Gang-du's father, however, turns out to be an espionage agent sent from North Korea. He makes his mind up to denounce himself by persuasion of his wife, but he and his wife get killed by other espionage agents. At the funeral of these two, Ji-sun and the village people march in resolution of succeeding her will to make more endeavors in the developmental plan of the village.

Best friends Dae-gyu and Dal-su fight over Ok-hi. When Ok-hui marries and goes to Seoul the fight ends. After many years, Ok-hi is widowed and brings her daughter Ji-hyang to her home village, and the fight between Dae-gyu and Dal-su begins again. Ok-hui borrows some money from Dal-su when she is short of money while building a reservoir for the village. Dal-su lends money on the condition that she marry him if she cannot pay him back until the ground-breaking ceremony. And Dal-su's wife leaves. As Ok-hui fails to return the money, she tries to run away with Dae-gyu, but they run into Min, Dal-su's son, who demands them to pay back his father's money. Finally Dae-gyu and Dal-su meet and have a fight, but at last Dal-su sends him to Ok-hi, and he is happy to do so.

Nam-Ok who has Yun-Ho and Yun-Suk remarries widowed Heung-Yeol who has Hyeong-Tae and Hyeong-Ja. Nam-Ok are concerned about frequent quarrels between half brothers and sisters, but manages to deal with them wisely. As Yun-Ho who went to fishing with him falls into the water, Heung-Yeol tries to save him only to drown himself to death. Fifteen years later, Hyeong-Tae goes abroad to study while Hyeong-Ja lives in extravagance in Seoul. Yun-Suk gets to know Dong-Oh on the train, and Dong-Ho gets to like her, but later misunderstands her due to Hyeong-Ja's scheme, which causes Yun-Suk to commit suicide.