Blood Tribe

The Blood Tribe are a mysterious clan of extraterrestrial planet devourers and the main antagonists of the Kamen Rider Build movie Kamen Rider Build: Be The One.

History
Having devoured countless planets across the universe, the Blood Tribe eventually turned their attention to Earth, with Evolt being the first of their members to attack. From the shadows, Evolt and the other members of the Blood Tribe manipulated the three divided regions of Japan into waging with each other to further their own plans.

After Evolt (in the guise of Masakuni Mido) conquered the three regions of Japan and unified them under a single government, three of the Blood Tribe, Kengo Ino, Ryoka Saiga and Mitsuomi Gohara became the new governors of each of the three regions in the new government based at the Pandora Tower.

Because Evolt had stopped his pursuit of Earth's destruction, the three governors opted to finish it themselves. Evolt told them he would not interfere, but reminded them that he had the power of the Pandora Box and thus the advantage.

To remove the only obstacle standing in their way, Kamen Rider Build, the three Blood Tribe aliens enacted their "Build Annihilation Plan", which involved brainwashing all of Japan to turn against Build.

Members

 * Kengo Ino/Kamen Rider Blood
 * Ryoka Saiga/Scissors Lost Smash
 * Mitsuomi Gohara/Zebra Lost Smash
 * Evolt/Blood Stalk/Kamen Rider Evol