In the icy expanse of Siberia three centuries past, Jubei Yagyu clashed fiercely with Kitaretsusai from the Northern Yagyu clan, leading to the freezing of his daughter, Freesia, in a state of suspended animation. With the onset of global warming in the modern era, Freesia emerges from her icy slumber and relocates to Japan, enrolling as a transfer student in a middle school. There, she forges a bond with Jiyuu Nanohana, who remains unaware of Freesia's true intentions. Unbeknownst to Jiyuu, Freesia harbors a secret agenda to claim the prized Lovely Eye Patch, convinced of its rightful ownership.