Onee-chan Gokko

In a distant future, where advanced technology has abandoned rural areas, the secluded Kagami Village holds onto eerie folklore: "Behave yourself, or a Double will come for you."

Middle school student Akane Higure eagerly awaits the return of her older sister, Sui, from a year-long hospital stay. But shortly after Sui comes home, Akane receives a terrifying phone call: "The girl at home with you… isn’t your sister."

This anime explores themes of identity, trust, and the blurring of reality through a suspenseful mystery, as Akane confronts the chilling legends of her village.