a reboot is a new start on a fictional universe that already exists. some of the same themes may exist, but the story of the reboot is unrelated to earlier parts of the story. an example of this is the movie "batman begins". even though it is set in the batman universe, the story has no relation to any of the earlier batman movies made by tim burton and joel schumacher. in video games, an example of this is "". even though the game is still about a half-demon named dante, like in the first game, the game's story has no relation to the earlier "devil may cry" games, and dante in dmc has a very different look and personality from the earlier dante.