Previously Kurama was greeted with a bullet to the chest in which Midori sacrificed her health to heal. Summoned by mysterious notes, the gang soon gathered at Kurama’s home to find a new threat to the world. They set out for the Foliage Fortress in attempts to divert this threat and were ambushed by none other than the kids of the first spirit detective. Joining forces, they enter the fortress together but what awaits them and why were they forewarned of this impending danger?