Gundam Build Divers Episode 21 English Subbed Episode Title:Your Feelings.Episode Description:GBN's entire populace is chasing after Sarah, giving the threat her existence is to the entire system. While looking for her, Riku is attacked by Ogre, who is determined to have a showdown with him at any cost. At the real world, Koichi comes with a plan to save both Sarah and the GBN, and asks for Tsukasa's help with it.