Revengeful Ghost is a first-person horror adventure that puts you in the shoes of Keiichi Tsujisawa, a second-year high school student whose life is turned upside down when his twin sister, Akane, vanishes after sending him a cryptic Line message: "Flip phone, video." Soon, another girl leaps from the school roof, leaving behind a mysterious flip-phone video and a curse tied to events from 25 years ago. Haunted by warnings that failure to uncover the video’s location means certain death, Keiichi must race against time to unravel a terrifying secret.