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.