Marucho must battle the Aquos Elemental Warrior, Frosch, and he is forced to send in Preyus early when he learns he is battling a shadow of himself. Preyus isn't feeling well throughout the battle, but he is able to give Marucho guidance to accepting his past. Marucho knew that he only did what his parents told him to make them happy, but he didn't like to always be so obidient. This causes Marucho to hate his old self. By accepting the past him, Marucho was able to help Preyus' digestion problem. This allows Preyus to evolve by spitting out his brothers: Aquos Angelo/Aquos Diablo Preyus. Will the combined strength of these brothers prove to be enough to defeat the Aquos Warrior?
Eri Sendai
Runo Misaki
Mamiko Noto
Alice Gehabich
Keiji Fujiwara
Dorago
Chihiro Suzuki
Shun Kazami
Yu Kobayashi
Dan Kuso
Risa Mizuno
Julie
Ryo Hirohashi
Marucho Marukura
Atsushi Ono
Tigres
Ayumi Tsunematsu
Miyako Kūsō
Eiji Miyashita
Preyas
Hideyuki Umezu
Naga
Hiroki Yasumoto
Golem
Kiyotaka Furushima
Billy
Fuyuka Ono
Shōko Marukura
Masaharu Satô
HAL-G
Nao Takamori
Wyvern
Soichiro Hoshi
Joe
Takayuki Kondo
Shinjirō Kūsō
Yuichi Nakamura
Captain Elright
