In the background of the Franco-Prussian war of 1870, two girls form a deep friendship that follows them throughout the years, pushing against family expectations placed upon them, as well as challenging their own individual ambitions. As they struggle with identity, independence, and loyalty to one another, their friendship evolves through love, betrayal, and a shared yearning for freedom denied to them. This journey of eventually culminates in a forbidden passion, setting off a chain of events that brings about unforeseen consequences.