This premium event featured appearances by the main cast of Kamen Rider Build, who conversed and share stories about the filming of the show that fans were not able to hear elsewhere. The event also included a stage show with an original Kamen Rider Build story created just for the event, complete with lights, sounds, and special effects. The event was be held on Friday, May 4, 2018, and Saturday, May 5, 2018, at the Grand Prince Hotel New Takanawa.
犬飼貴丈
as Sento Kiryu / Kamen Rider Build
赤楚衛二
as Ryuga Banjou / Kamen Rider Cross-Z
武田航平
as Kazumi Sawatari / Kamen Rider Grease
高田夏帆
as Misora Isurugi
滝裕可里
as Sawa Takigawa
前川泰之
as Souichi Isurugi
水上剣星
as Gentoku Himuro
越智友己
as Nariaki Utsumi
