Kamen Rider Build: ROGUE

Three years ago, Gentoku Himuro, head of the Touto Institute of Advanced Matter Physics, tries to convince his old friend and Touto Prime Minister aide, Koji Hotei that Touto needs to strengthen their military in order to face the threat Hokuto and Seito represent. Hotei however, does not listen. It is then that Gentoku is made aware of a certain researcher.