Building on the styles of AtlusPersona, Devil Summoner, and Devil Survivor titles, SMTIV is the first true successor to 2004's Shin Megami Tensei: Nocturne. The story of SMTIV revolves around the Samurai, the sacred protectors of the Eastern Kingdom of Mikado. As a newly appointed Samurai, players will struggle with factions that have nefarious designs on the world as they defend their home kingdom from a growing army of demons. Decisions players make throughout the course of the story will have lasting repercussions, as the fate of the world hangs in the balance.[metacritic]