It comes from Konami video game Zone Of The Enders: The 2nd Runner, also known in Japan as Anubis: Zone Of The Enders.
Once built, it stands approximately 18cm tall (just like a Master Grade gunpla!) and is finely detailed and highly posable, as it features 30 points of articulation.
It consists of about 500 pieces. It's recommended to use a pair of hobby nippers to properly detach all parts from their sprues.
You can paint it using proper colors and your preferred tecnique, but it's not mandatory, since all parts are already molded in color. In particular, to get the blue "streaks" that can be seen in the photos, on the armor of the Jehuty, you'll have to apply the panel lining technique, ie color the grooves already present on the components.