Kamen Rider Recap: Kamen Rider Build, Episode 21 – The Unstoppable Hazard February 12, 2018 Sento henshins to Black Hazard and takes on the Three Crows. Ryuga tries to stop Sento, but something suddenly snaps. The words of Soichi and Kisaragi echo through Sento’s head…. Share:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email a link to a friend (Opens in new window)MoreClick to share on Pocket (Opens in new window)Click to share on Telegram (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on WhatsApp (Opens in new window) Continue Reading