Kamen Rider Kabuto Episode 39 A Formidable Opponent, Black Kabuto ( Air Date 2006-10-22 ) Genre Action & Adventure, Sci-Fi & Fantasy, Drama category. Overview "After being defeated by Tendou, Daisuke finds Rena who is now not aware that she is a Worm; Tsurugi asks Kagami to help him ask out Misaki; Tendou laments about not being able to find a way back to Hiyori.".