Chen Hao Yuan is an honor student with a mellow personality. His best friend Hong Cheng Yi, on the other hand, is delinquent who did time in juvenile detention for bank robbery. Together they helped their classmate get off drug addiction, exposed their teacher's dirty secrets, and even tried to find the bees that have gone missing because of the upcoming 2012 apocalypse. Their carefree attitude toward life turned to rage when they discovered that a corrupted politician was responsible for both of their families' misfortunes. The boys got a gun and decided to explode the day before their high school graduation.

Third year high school student Haru Hiiragi  is popular with his peers, but isn't interested in his studies or love. Koto Harukawa  is first year high school student who is the target of bullying. One day, Haru sees Koto getting bullied and comes to her defense. Haru and Koto become friends and start their own "Kingyo Club" (Goldfish Club) as their safe haven. Problems from the outside still threatens their relationship.

Woo-Jin is an ambitious doctor who no longer believes in true love, after having failed before. He views marriage as just a business. Hae-Soo works as an assistant chef. She dreams of getting married to the right man and having a family. Woo-Jin soon falls in love with her, he comes into conflict with love and ambition.

After losing his wife five years ago, Lee Sang Ta is left with his two children. Since that time, he lives with his two kids and parents-in-law, who treat him like their own son. He works as a marketing team leader for a fashion brand and never expects to find someone who will make his heart beat again.

Ahn Mi Jeong works as an assistant manager at the same fashion company. 3 years ago, her husband had an affair with her friend and left her. She couldn't tell her 3 children the truth about their father and lied that he went to work in America. To this day, the children still believe that their father is in America. She has numbed herself from the struggles of raising her children alone while working.

As these two begin to find love again, a tempest is brewing as three sets of in-laws and five children learn to become one family.

The story revolves around computer programmer Tori Shinichi, who’s also a self-appointed hikikomori, and his friend Sakaki Tsukasa, who’s a life insurance company employee. Solving all sorts of mysterious incidents that arise around them, they mature throughout the encounters with various people.

Sun Shanqi (17 years old, gifted student) was killed on the night of February 29 in leap year, and his amputated thigh was abandoned by Japanese ukiyo-e stockings and found in the river. Her mother, Ruoyun (42, a sculptor), later learned from the police that the girl was actually the owner of a pornographic website, and that customers could pay her to undress. The perfect family suddenly broke down, and Ruoyun divorced her husband Allan; Ruoyun's temperament has changed drastically, and the relationship between her young son (Sun Shanwen, 17 years old) deteriorates rapidly, causing the other party to rebel and apply for a court order to follow his father. But the nightmare is not over yet, Ruoyun learns that on the night of the incident four years ago, her daughter left home angrily and it turned out to be related to Allan. Allan, in order to keep it a secret, destroys the evidence that the police can solve the case. Ruoyun, who originally believed that her daughter was killed by a serial killer, was instantly confused. Who is the murderer?

A story that follows police section chief Zhao Yiyang as he leads his men to unravel the truth behind a traffic accident and to bring the culprit to justice. When a car accident kills a child's parents, the newly-appointed section chief Zhao Yiyang (Huo Zhengyan) discovers that there are two other cars related to the accident. When he finally narrows down the suspects, he realizes that his current case involves an old case from his past.

The story is about a reporter Kayama Satoshi searching for the truth of the death of his 2-year-old son in a tragic accident which also involves his wife, Kayama Mitsue.

Based on the novel "Ranhansha" by Tokuro Nukui.