After a serious illness almost killed her several years ago, Mari has only been kept alive thanks to a local witch who casted an enchantment on her lungs, but what happens when the witch decides to move away? What does Mari have to do in order to maintain the enchantment on her own? What will she learn about herself in the process? How will it affect the complex situation going on between her and her lifelong best friend? A slice of life story about magic, suffering, and unwavering devotion.