DCU is a detective series of a team of elite divers boldly solving crimes where no investigation has gone before. The darkest secrets, however, might not be hiding in the oceans’ depths but are buried in their own pasts. And they must be confronted before they throw the entire world into deadly chaos.

A story-a-week episodic medical mystery that treats the theme of reality changing when faced with imminent death. Mystery and exhilarating human drama unfold against the backdrop of the “unnatural death institute”, or “UDI”. For example, the body of a young man is brought into the UDI lab one day; his cause of death attributed to ischemic heart disease in which blood fails to be conveyed to the heart. But the victim’s parents are puzzled by the freak nature of their son’s death and turn to medical coroner Mikoto, to find out why. Together with her lab technician partner, Yuko Shoji, and rookie medical recorder, Rokuro, they examine the body for a possible drug poisoning, and then learn that another female colleague of the deceased man has just died suddenly.

Racing to the sites of horrific disasters and accidents, a medical team specializes in disaster treatment “under the rubble.” They are DMAT, the Disaster Medical Assistance Team, and their mission is to rescue disaster victims from the grips of imminent death with quick response emergency aid. Internal medicine physician, Dr. Hibiki Yakumo, intentionally avoided the field of emergency care after a misjudgment led to his younger sister slipping into a comastose state in ER. But when hospital director, Shoichi Isezaki, transfers him to DMAT, he joins a an elite yet very eccentric team of doctors and nurses. When they respond to a highway tunnel multiple collision with large casualties, Hibiki must confront a mind-boggling scene of tragedy where 10 seconds of hesitation could mean the loss of life. A human drama unfolds in extreme life or death conditions.

Yuko is a biology teacher and education counselor at a local high school. Between the school bell chimes, she’s an ordinary teacher with superlative instructional technique. But when school lets out, she transforms into the one person you don’t want to mess with, a super problem-solving mercenary for whom no method is off limits when it comes to rooting out the myriad problems infesting teenage life in the schools. With an “eye for an eye” approach, she’s not above breaking a few laws and demands payment for her services. Enlisting as her sidekicks, Sumire and Aya, the personality-diverse trio run their elite “extra-curricular social work” club unified around Yuko’s charismatic leadership. High school students do not live in a sanitized bubble, and some extraordinary problems require extraordinary solutions that black-and-white rules of propriety or common sense alone cannot solve.

What is unhappiness? All girls dream of living the life of a princess. Matsuko Kawajiri, born in 1947, was one of them. But after losing her job as a teacher in her twenties, and leaving her families’ home in disgrace, she departs on a journey of colorful ups and downs that takes her to the seedier side of life. No matter if she gets hurt time and time again, the man she loves is always central to the dreams of her life. Anyone else would think that her life is miserable, but Matsuko is always optimistic and never lets go of her dream to the end, in this funny but sad Cinderella story!

Widower Takumi lives a quiet life with his six-year-old son Yuji after the loss of wife and mother Mio. Yuji unfailingly remembers her promise to him: “I’ll be with you again in a year’s time, when the rains come.” On the first anniversary of her passing, Takumi and Yuji are taking a walk in the woods when they come across a woman sheltering from a monsoon downpour. She bears an uncanny resemblance to Mio, but has no recollection of who she is or what she is doing there. Family life resumes from where they left off, while Takumi and Mio’s memories of their first encounter in high school come flooding back. However, their new life together is interrupted by the discovery of Mio’s old diary, which reveals the secrets of her past and how they must say goodbye once more in six weeks time…