被人认为闷骚无趣的青年安武信吾(大仓忠义 饰)偶然邂逅志愿成为音乐教师松永千惠(尾野真千子 饰)。千惠热情开朗,乐天阳光,她的出现令信吾的生活充满了欢声笑语。在二人交往一年半后,一个噩耗突然带走了他们的笑容。千惠被诊断患有乳腺癌,经过慎重考虑,信吾不顾父母的反对向千惠提出结婚的请求。经过长达八个月痛苦的治疗过程,信吾和千惠终于迎来走入婚礼殿堂的重要时刻。婚后的生活幸福平淡,不久千惠也获知怀孕的喜讯,然而与之相对,癌症复发的几率也陡然上升。交织着悲与喜的期待,安武家迎来了新生命小花(芦田爱菜 饰),只是脆弱的幸福还能够延续多久…… 本片根据安武信吾和千恵はな的原作改编。Yasutake Shingo works as a newspaper reporter but his life is stiffled and lifeless. That changes one day when he meets the irrepressible Matsunaga Chie by accident. Just as their relationship is blossoming however, Chie tells Shingo that she has breast cancer. Shingo determines to marry Chie right away, but she'll have to go through surgery and cancer treatments first. Then, not long after their marriage, Chie becomes pregnant. But that means she could lapse back into cancer again. Still, the couple decides to have the child, a girl they name Hana. But as the years pass and Chie bounces between the cancer and cures, she decides she had better teach Hana to take care of things in her place, just in case the worst happens.