You play as an adventurer named Hyde. He's been dungeon explorer for a short while now. The desire to do so is because within many of these places lay remnants of the "Old World". Upon coming across a town named Arvil, he is told of a nearby cave that no one has yet looted for the monsters that guard it. This doesn't stop Hyde, and he soon stumbles upon something he wasn't expecting within the ancient cave--a woman!? This mystery-girl is going to really complicate things...

[Edited from White Masq]