In the final months of World War II, 14-year-old Seita and his sister Setsuko are orphaned when their mother is killed during an air raid in Kobe, Japan. After a falling out with their aunt, they move into an abandoned bomb shelter. With no surviving relatives and their emergency rations depleted, Seita and Setsuko struggle to survive.

这本书为《佐贺的超级阿嬷》的续集，含《幸福旅行箱》和《妈妈，我好想你》两部。
昭广高中毕业后，在“超级阿嬷”的支持下，决定去闯荡天下。不论是在创业初始的艰难之际，还是遭遇事业泡沫的困苦之时，昭广耳边总响彻阿嬷坚定的声音：“拼命努力的前方，就是成功。”除了阿嬷，还有一个同样重要的女人始终立在昭广身后，那就是妈妈。无论昭广走到哪里，妈妈达观率性、热爱生活的人生态度，都给了他无限的力量和温情，让他受用终生……