游戏中玩家将扮演18岁的少女米莉安，她是曾被炼金术师收养、自幼身体上就被施加炼金术秘术的孤儿之一，因为秘术的影响而昏睡了10年，肉体跟着停止变化。因为昏睡所以没有受到地狱召唤仪式影响。苏醒后的米莉安，因为秘术的诅咒而导致肉体逐渐被魔力结晶侵蚀。为了存活下去，她必须深入昔日同伴吉贝尔所召唤出来、充满恶魔的城堡战斗。

Battle with swords and whips in this retro-style action game brought to you by game creator Koji Igarashi and Inti Creates! Play as Zangetsu, a demon slayer bearing a deep grudge, who must travel through perilous lands to defeat a powerful demon lurking in a dark castle.