Kouchu was sleeping at night again, and Marc have told him about Devil J. Kouchu was warned that Devil J is the most powerful being in the Crystal World, and Marc have suggested Kouchu to look in the library for the ancient book dated back in the 25th year. Back at the Clevergreen City Library, told by the creepy librarian who led them the book, he brawlers learned that Devil J, destroyer of earth, has existed when they found the book of the legends of the Crystal World. The brawlers must come to terms when Marc have told Kouchu that Hunter Grai was the godson of Devil J when he was younger, only to know that Devil J was trying to destroy the Crystal World for centuries.
