Putting the spotlight on the world of medical oncology, a field which specializes in the treatment of cancer, Kokoro Onda and Kaoru Kajiyama who both begin to work as buddies, play a major role in the process of helping those in most need.

The medical oncology dept. which Kokoro Onda belongs to, receives a request from the breast oncology deptartment regarding pre‐operative chemotherapy…

After receiving an emergency call that her husband’s condition has suddenly changed for the worse, Kokoro immediately goes to the hospital with Kaoru where she receives news about the situation…

The funeral of Kokoro’s husband takes place. Meanwhile, even though the attendants of the ceremony try to comfort her, Kaoru is unable to find the right words to give her. Meanwhile, Kokoro goes back to work a few days later despite her solemn emotional status…

Kokoro finds out from Kaoru, that her husband had passed away due to wrong doings in an operation. Moreover, she confesses that the person in charge of it was herself…

Kokoro finds out that the death of her husband was not due to Kaoru, as she realizes that it was a mistake made by another. Meanwhile, she feels downhearted about her harsh comments towards Kaoru…

During a conversation, Kokoro tries to find out the reason for her patient not opting for chemotherapy, as she eventually finds out that there are things her patient wants to do while she can remain active…

Kokoro and Kaoru gets called up by a doctor in one of the specialist’s department, as they are told that a worrying discovery has been made in one of the echos…

The brother of the pancreatic cancer patient who Kokoro and Kaoru are supervising, comes over to state that he wants to change over his brother’s hospital. But complications arise…