A brother and sister learn their biological grandfather was a kamikaze pilot who died during World War II. During their research into his life, they get conflicting accounts from his former comrades about his character and how he joined his squadron.

University student Nozomi tries to get a job. Back in her hometown, she was lazy, but now Nozomi is used to the quicker pace of Tokyo. Nozomi is also experiencing problems with her boyfriend Kameyama, who seems to be travelling at a different speed in life and work. Meanwhile, Saeko works very hard in the advertising field and she is faithful to her boyfriend Tomoya. Yet, on their first year anniversary, Saeko hear's woman's voice on Tomoya's cellphone. Based on the anthology manga of the same name.