The setting is 15th century France. A girl named Cerisier, coming from a poor, rural family, sets out to the capital to seek work. On her way there she unexpectedly acquires an oversized sword, the Zweihander. Guided by the girls she met at the capital, she decides to set her sights on becoming a female knight. Everything carries a fresh sense of excitement to her, whether it's her first glance at weapons and armor, her life in the capital, or the instruction she receives at the Girls Knight Academy. This is the bright, shining life she spends with those sharing the same dream as her!