Shingo Kuwata

Shingo Kuwata is a member of the Touto Institute of Advanced Matter Physics who is secretly a spy for Faust and a minor antagonist in Kamen Rider Build.

History
Shingo Kuwata attempted to lower the security around the Pandora Box, but Sento Kiryu interfered. Kuwata then turned himself into a Flying Smash to fight Build, but was defeated by the Rider in his LionCleaner form.

After his defeat, Kuwata revealed that he was really a distraction for Sento while Eita Kawai stole the Pandora Box. He then used Nebula Gas to commit suicide, proclaiming that Takumi Katsuragi, the "Devil's Scientist" was still alive before dissolving.