36x39 - Kamen Rider

A "Black Case" has occurred, likely caused by Code: Somnia's missing Capsem. Following orders from Zero, Baku rushes to recover the Capsem. Sieg, whose fused Nightmare has awakened within him, has returned. Could Sieg be the one who stole the Capsem!? Baku transforms into Zeztz and collides with him in a massive crash!