Shiratsuyu and Ichigo - First Rider and lead ship Yuudachi and Amazon - Fourth entry in Kamen Rider and fourth in the Shiratsuyu class. Plus the both of them are hotblooded (or at least with Tomokazu Seki voicing Amazon). Though their finisher is the Dai Setsudan, a Rider Chop. Kisaragi and Fourze - Namesake Satsuki and Faiz - Fifth entry in the Heisei era and fifth in the Mutsuki class (plus Satsuki being the traditional month of May)