The main protagonist is called nights and he is a banished nightmaren which are the bad guys, but nights became a good person.
You have to go through dreams and defeat the nightmarens which are trying to destory all the dreams.
The villagers that you can help are called NIghtopians that are sometimes around the areas of Nightopia.
The two main characters are named Elliot Edwars and Claris Sinclair.
This is a chart of the Nightmarens.
It is a very good game and I reccomend it to everybody who can afford it.
Here is a computer background that you can use.