Dairenai ~ Boku o Wasureru Kimi to

34-year-old Kitazawa Nao (Toda Erika) is a doctor who works hard every day at a ladies clinic. She is engaged to marry an older doctor Ihara Yuichi (Matsuoka Masahiro) with perfect qualities. One month before her wedding, Nao moves to her new home. On the day of the move, she meets a surly Mamiya Shinji (Muro Tsuyoshi), who works part time for the moving company and used to be a struggling writer. The two of them fall in love. However, Nao discovers that she is suffering from Alzheimer’s disease. In spite of this, Shinji changes this crisis with laughter and cheerfully supports Nao. Through her illness, Shinji learns the meaning and joy of mutual love and her presence awakens his potential. He writes a book about living with Nao and their romance, all the while aware that Nao will no longer know him some day … …

Synopsis: JDrama Weblog