Shin Megami Tensei IV is a role-playing game developed and published by Atlus for the Nintendo 3DS. The game is a sequel to the PlayStation 2 role-playing game, Shin Megami Tensei: Nocturne, although it's not a direct sequel. Exploration takes place in third-person, while the battle system is in first-person. The game takes many elements from previous games in the Shin Megami Tensei series, as well as incorporating some new things.
The story follows Flynn, a young man from East Mikado and a new samurai, along with Walter, Jonathan, and Isabeau, all of whom Flynn had met in a dream before. Meanwhile, a Black Samurai is causing chaos throughout Mikado and the new recruits are sent to hunt her down and put an end to her evil.