Megami Tensei Gaiden: Last Bible II is the second of four games in the Last Bible series. While the first Last Bible game was released in the West under the title Revelations: The Demon Slayer, this entry was only released in Japan in Japanese, but this cartridge plays in English thanks to a fan translation.
Premise: "Ages ago, people lived on what was then known as the Fifth Planet. They were able to use telepathy, teleportation, and telekinesis - powers that were once reserved for gods alone. They called the powers Gaia, and adept users were known as Gaia Masters. Despite wielding these powers, the fall of the Fifth Planet forced them to flee to Terra, the Third Planet, to dwell with the beasts. War soon erupted between the humans and beasts. Both sides fought desperately for control over Terra. In the end, there was no victor. The battles left the humans and the beasts decimated. The survivors did not have the strength to keep fighting. They no longer fought for control of the planet; they merely struggled to stay alive. 2000 years later..."
Story: The protagonist Yuri was born and raised in the demon kingdom and sets off on an adventure after the Demon King asks for his aid to stop the return of Gryas, whose return was prophesied to coincide with Yuri's birth. Yuri is raised by Solion in a monster village, becoming good friends with Larsa and Medea from a nearby village. He was hidden there after Medoch convinced the King of Magoku that the reincarnation of Gryas was about to appear; the King ordered all newborns to be killed, but Yuri survived in hiding. While exploring, Yuri learns of a man searching for a legendary city known as Blantica, and of a mage named Krau who works with Zodia, a machine-like lifeform known as a Deux that has chosen Krau as its master. When soldiers invade Yuri's home and capture Solion, Yuri joins Esau - the one searching for Blantica - and along the way crosses paths again with Krau and Zodia, who are trying to learn why plants around the world are dying.
This is an RPG with monster recruitment and turn-based battles, presented here as an English fan translation of the original Japanese Game Boy Color release.