Characters in The New World of Steam
This page only repeats what official materials have already announced. We will not invent cast members, relationships or plot points.
Professor Layton and Luke
The official English site describes the game as a new puzzle-solving adventure for Layton and Luke. They are the named protagonists in the published product information.
Steam Bison
The story is set in Steam Bison, a town in the United States after the end of the Western era — again, wording taken from official product descriptions.
Source: official English product copy onlayton.jp/jouki/en-us.
Related:FAQ,release date,puzzle list.