Paradise Lost is considered as a continuation of an alternate ending, in which Smart Brain and the Orphnochs have won the war after the events of the Lost World, after Smart Brain used an experimental flower to turn humans into Orphnochs, Smart Brain has accomplished its goal of world domination - with 90% of Earth's population being Orphnochs while the human race is diminishing to near-extinction. Takumi Inui - a.k.a. Kamen Rider Faiz - was regarded as mankind's savior until he was presumed killed during an attack by Smart Brain's Riotroopers. Since then, his friend Mari Sonoda has formed a human resistance group that have staged attacks on Smart Brain's headquarters in an attempt to steal the top-secret "Emperor Belts", but to no avail.