"Kamen Rider Build" is a Japanese tokusatsu series that premiered in 2017. It follows the story of Sento Kiryu, a brilliant physicist who transforms into the superhero Kamen Rider Build to fight against the evil organization known as Pandora's Box. The series features a unique system where Sento uses special items called Fullbottles to gain different powers and abilities. The plot revolves around the conflict between humans and the Smash, monstrous creatures created from the Nebula Gas. As Sento uncovers the truth behind the Build Driver and the origins of the Smash, he teams up with Ryuga Banjou, another Kamen Rider, to protect humanity and restore peace.