When high schooler Momo, from a family of spirit mediums, first meets her classmate Okarun, an occult geek, they argue - Momo believes in ghosts but denies aliens, and Okarun believes in aliens but denies ghosts. When it turns out both phenomena are real, Momo awakens a hidden power and Okarun gains the power of a curse; together, they must challenge the paranormal forces threatening their world.