Hyun-sook pressures her anxious daughter to greet her strict grandmother for Lunar New Year, but when her daughter, Jisoo cannot speak, she must choose between punishment or defying generational expectations.

冲绳，日本二战时死伤人数最多的本土战区，而“姬百合学生队”则是由冲绳两所女子学校所组成的后勤医护人员，两所学校共 240 名师生，136 名师生战亡。本书以姬百合学生队的史实为基础，描绘一个又一个如同百合花盛开的少女面对战争的肆虐，青春的甜美如何成为对抗残酷现实的最后武器。