SHADOW is a mysterious organization that plots world domination through the most advanced technology and weapons. Similar to DARK, all of their combatants are robots and are lead by the enigmatic Big Shadow. SHADOW seeks to possess the Giant Devil weapon from Professor Gill's children Akira and Rumi. Unlike the tokusatsu series, the only other prominent member seen was Shadow Knight as Hakaider did not join them and Zadam appeared as an elite soldier. Many of their robots are modeled after marine life like eels and manta rays.