Chie (Ryoko Hirosue) and Shingo (Kenichi Takito) have been dating for many years. Just when they were about to join hands in marriage, Chie was diagnosed with breast cancer. However, Shingo still chose to propose to Chie. After marriage, Chie began to actively receive treatment. Under the torture of the side effects of chemotherapy, the couple still maintained a positive and optimistic attitude towards life. For a time, Chie's condition was under control. However, what Chie and Shingo did not expect was that Chie's belly actually had a small life. If they wanted to keep the child, Chie would no longer be able to use drugs, which meant that Chie's cancer was very likely to recur. The strong Chie decided to give birth to the child, and ten months later, Xiaohua was born. Sure enough, Chie's cancer recurred. Facing the approaching footsteps of death, Chie decided to leave the most precious legacy to her husband and children.