Kisaragi Station, reborn in the modern era――. A story of urban legends that has been comicized from a collection of songs available on the internet. The high school girl, Hiiragi Nagisa, navigates between bullying at school and a broken family. Despairing of her disastrous life, Nagisa finds herself lost in an otherworldly realm filled with writhing shadows and mysterious structures after boarding her usual train. "This is Kisaragi Station, the station of the otherworld spoken of in urban legends." Guided by a mysterious figure through social media, she wanders Kisaragi Station in search of a blue-haired girl who holds the key, while shedding light on her missing mother and the twisted nature of her own heart.