As Mato prepares to go to training camp with her バスケットボール, バスケット ボール club, Yomi starts to become jealous of Mato's childhood friend, Yuu Kotari. Mato has もっと見る dreams involving Black ゴールド Saw during camp, and at the same time, Saya takes an interest in Yomi. Upon returning to school, the バスケットボール, バスケット ボール coach, Arata Kohata, discovers a 愛 letter she wrote for a boy she liked had been 投稿されました for all to see. Although she holds back tears in front of the crowd, she comes to realise those laughing behind her back when she is taunted によって Saya. In the other world, Black Rock Shooter attacks Black ゴールド Saw's hideout, killing her minions, one of which resemble Arata. Simultaneously in the human word, Arata experiences a sudden pain in her head and falls unconscious in front of Mato.
