Juzaburo Namba

Juzaburo Namba is the CEO of Namba Heavy Industries and one of the main antagonists of Kamen Rider Build.

He collaborates with Faust to start a war between the three nations of Japan as part of a plan for all of Japan to be unified under one state.

History
Juzaburo met with Gentoku Himuro in a bathhouse to see if Prime Minister Himuro of Touto was interested in the Rider System's manufacturing plans. Gentoku informed Namba him that the Prime Minister Himuro remained uninterested in the weapon. Namba then reminded Gentoku that his company had invested a lot of money in Faust and that the Rider System's power would allow Touto to rise as a global military power structure with, threatening to reveal the Rider System plans to Hokuto and Seito if a deal was not reached.

After Blood Stalk stole the Pandora Box and delivered it to him, Namba informed him that he intended to reverse engineer the Box's power source to put his company in the lead in weapons manufacturing. However, the two then discovered that the Fullbottles Stalk had stolen were fakes, saved for the Octopus and Light Fullbottles.

Namba later backed Seito and its Prime Minister Masakuni Mido, planning for them to inherit Japan. With the majority of Hokuto's forces attacking Touto, Seito launched a succesful of Hokuto before declaring war on Touto once Hoktuo was conquered by Seito.