Devil Children Fire Book and Devil Children Ice Book are two versions of the same game within the Devil Children series. Released for the Game Boy Advance, each feature their own story line and cast albeit some overlap, most notably the main character of the opposing version (Jin for Fire Book and Akira for Ice Book), both of the aforementioned demon partners (Rand for Jin, Gale for Akira), Amy and Lena.
The game begins with towers leading to Makai and Tenkai appearing on earth, with demons and angels fighting each other and beginning armageddon. Jin and Akira both try to the reason behind this, with their demon partners returning to give them their aid. Amy appears and tells them that Valhalla has been destroyed. She and Lena are then kidnapped, taken by Isaac and Mephistopheles to the angels Enoch and demon Zebul, respectfully, and eventually their true masters. The two boys go on a journey through the demon and angel worlds to save them and stop the ones leading the forces of Fire/Light and Ice/Darkness.
Devil Children Fire/Ice Book
|Playable||Jin - Akira - Rand - Gale|
|Non-Playable||Lena - Amy Kashihara - Paku - Haamiru - Mephisto - Isaac - Michael - Lucifer - Faruha - Kerumido - Seku - Rejiinu - Ganku - Kuun - Muuru - Flame Apostle - Ice Apostle - Shugoshin - Secundus - Zosma|
|Harajuku||Main Street - Park - Mansion - Underground Shopping Center - School - Akuma no Hokora - Angel's Tower|
|Makai||Inelus Village - Acheron River - Central Land - Dark Palace - Deep Hole - Black Forest - Peril Forest - Underworld - Annwn Town - Heimdall Plains - Babylon Labyrinth|
|Tenkai||Midkingdom - Highest Peak - Light Palace - Fire Machine Mountain - Eden - Huge Floodgate - Water Angels Village - Lotus Marsh - Dios Forest - Earth Angels Village - Extensive Earthly Forest - Tower of Babel - Seele Plains - Shugyōja Road - Wind Angels Village - Fire Angels Village|
|Niflheim||Suneefiyoru - Dark North - Hvergelmir - Gimle Snowfield - Norðri Shrine - Niðafjöll - Vestri Shrine - Ice Apostle Castle - Ice Apostles Castle Town|
|Muspelheim||Soorufiyoru - Austri Shrine - Mímisbrunnr - Fairy Village - Rogafieru - Suðri Shrine - Flame Apostle Castle - Flame Apostles Castle Town|
|Ginnungagap||Auðumla Town - Huge Bridge - Bridge Cave - Shugoshin Cave|
|Lists||Demons - Skills|