As Black Rock Shooter fights against a huge undead army under Dead Master's control, Yomi behaves strangely at school, cutting her hair in class, causing Mato to become concerned, even lashing out at Kagari. As Yū becomes cautious of Saya's actions, Mato sees the battle between Black Rock Shooter and Dead Master in her sleep. As Mato visits Saya the next day, Saya tries to strangle her, leaving her confounded. After seeing the painting Yomi drew of her, Mato comes to realize that is because...