You're so warm...

Shoko, a married woman, works in a hospital as a nurse. One day, one of the patients happens to meet an old boyfriend, Tagawa. Shoko learned from her nurse that Tagawa is terminal cancer and can only live for 3 months. However, I couldn't tell Tagawa, so I don't know. The hospital says to give up treatment and just go home. She makes a decision because she wants to do something for Tagawa ...