World theme of this work is "key and door" mysterious door is opened in the "specter arc"! Story over the four world. A new meeting is waiting on the other side of the door! ■ field search so far also graphics from the "specter Watch" series greatly evolved! Field is in 3D! ■ battle system in the newly became battle, the human characters also participated not only the specter! In Bosubatoru, humans can proceed to advantage the Battle Born chance by Suitoru! ■ also appeared one after another new monster new monster appeared thrilled!