Despite being poor, Jung-Yuen is a happy teenager who gets on well with his family. During high school, he develops a crush on Shu-Yuen, a girl from his neighboring village, who is extremely smart, but reclusive with an odd personality. After they both begin university, Jung-Yuen, a medicine major, comes up with every excuse he can think of to get Shu-Yuen's attention, who locks herself away from the world in the library and her laboratory. After a lot of effort, Jung-Yuen finally succeeds in winning her heart. Mysterious equation is an uncanny love story about an optimistic doctor and a scientist who was ready to dedicate the rest of her life to science.

The story centers around the employees of a legal document firm. Tamura Katsuhiro is a young man with a strong sense of justice. Although he believes that the law isn't always right, he becomes an administrative scrivener with the goal of manipulating the law in order to protect the weak. On the other hand, Sumiyoshi Misuzu, a former delinquent who hates to lose and who is now a capable scrivener. Katsuhiro and Misuzu are always at odds, but they gradually come to understand each other.

In the Southern Song Dynasty, there is turmoil both externally in the country while infighting and killing among various sects are common in the martial art world. The family of KOWK CHING (LEUNG KA YAN) and WONG YUNG (AU YEUNG PUI SAN) lead a tranquil and peaceful life on Peach Blossom Island. Fate has led CHING to meet YEUNG GOR (ANDY LAU KAK WAH), son of his old friend YEUNG HONG, when he returns to the mainland to look for YUNG's father WONG YEUK SHI. CHING sympathizes with GOR since he is an orphan, and brings him back to the Island.

The supporting cast lineup of FujiTV Winter 2017 drama "Daibinbou" starring Koyuki has been announced. The human comedy drama which is an original story and begins its run from 8 January 2017 in the Sundays 9pm timeslot, features Koyuki as a single mother Nanakusa Yuzuko who struggles against the irrationalities regarding money, power and love happening around her while Ito Atsushi plays her "buddy" Kakihara Shinichi who is an elite lawyer. Narita Ryo will play Kase Haruki, a capable salesman who has been working for three years in the human resources company Dimensions Of Humanity (DOH) which is also where Yuzuko works at. Despite being young, Kase is street-smart and knows about the dark sides of human nature. He joins forces with Yuzuko and Kakihara to find out the truth behind DOH's bankruptcy. Johnny's WEST member Kamiyama Tomohiro plays a newbie lawyer Kogure Yuuto who works at Kakihara's law firm and is hardworking and serious. His interaction with Kakihara will provide comedic relief in the story. Takito Kenichi will play DOH's accounting department's manager Asaoka Reiji who is quiet and even uses honoriffics with his subordinates thus has the reputation of being a gentleman in the company. He knows everything about the company since it was established and has an unknown side to others. Okuda Eiji plays Tenma Toshiaki who is the president of DOH and is the benefactor of Yuzuko since he was the one who made it easier for her to work, given her single mother status. However, with the declaration of DOH's bankruptcy which is due to an incident, he becomes despondent about life.

An elite North Korean spy, Han Myung Wol, and her partner, Choi Ryu, infiltrates South Korea on a mission to disrupt the Hallyu Wave by kidnapping one of their top stars, Kang Woo. Despite her proficiency at her job, Myung Wol's one weakness is her uncontrollable curiosity. Hijinks ensue when she falls in love with Kang Woo instead.

An icy-cool pop idol, Sakuraba Yuuichiro, is actually a happy-go-lucky smiling idiot. After falling in love with Sakura, trouble ensues after agreeing to marry into Sakura's family, which consists of her 3 sisters. Of course, more trouble follows trying to hide his marriage from his adoring and rabid fans.