Everything seems to be going great for 36-year-old Asuka, a successful architect. She enjoys her job, and is surrounded by great co-workers. Although she suffered from depression in the past, which resulted in divorcing her husband and abandoning her daughter, she is happy with her independence, and finally things are looking on the bright side. Then one day, after a routine check-up, she is diagnosed with cancer, and is told she only has 3 months to live. Asuka, shocked and scared, keeps her cancer a secret, and makes up her mind to spend her last summer with her 9 year-old daughter, Ayumi, who she hasn't seen in 3 years. Meanwhile, her ex-husband is ready to introduce Ayumi to his fiancé, who he hopes will take over the role as Ayumi's mother. Will Asuka be able to mend the mother-daughter bond that was broken? You'll be moved by this story of a mother who is determined to win back her daughter's heart, as she hides her pain.