Playing Sister

Kagami Village is a suburban mountain community in a distant future where urban areas have seen significant advancements in science and technology. There, a local legend still holds sway: "If you're not well behaved, a look-alike will come." After a year in the hospital, Higure Sui is finally released, and her younger sister Akane, a middle school student, is eager to be reunited. However, Akane's reunion plans are put on hold when she receives a phone call informing her that the person in the house is not her sister.