4. Antrooper Labyrinth

Houtarou can't help but exclaim in admiration at Valvarad's powerful might. However, Spanner says that he didn't acknowledge Houtarou as a Kamen Rider and leaves. Houtarou and Rinne, who continue their search for Chemies, come face to face with the Three Dark Sisters, Atropos, Clotho and Lachesis. Lachesis then absorbs a Chemy and transforms into Malgam. Houtarou transforms into Gotchard, but immediately after that, they are sent to a huge, different space!