Shirayuki is an herbalist famous for her naturally bright-red hair, and the prince of Tanbarun wants her all to himself! The prince from the neighboring kingdom, Zen, rescues her from her plight, and thus begins their love story.

The orimmallys project is finally coming to fruition. But when the annual northern flu hits Lilias, the entire medical team faces a sudden deluge of field medic work, an experience that proves valuable for Shirayuki's and Ryu's training. Meanwhile, the sons of nobles are being targeted in a potential plot, and the main suspect is someone close to Zen!