Nintendo DS is Nintendo’s handheld game console.

Waking up, unsure of where he is, Junpei discovers a watch-like device attached to his wrist with a digital "5" on the face. Trapped inside the room with the only way out being a solid, steel door with a menacing, blood-red "5" painted on it, Junpei has little time to take in his surroundings before a porthole cracks, and water rapidly begins pouring in. As he makes his escape, pieces of memory return, including a strange figure in a black coat and gas mask known only as Zero. He soon meets eight other people aboard what they soon discover is a huge ship. Who are they, why has Zero brought them here, and what is this strange game that Zero has decided to play with their lives? Nine Hours, Nine Persons, Nine Doors is an adventure game with two different styles of play.