The name of the chat client is Chatsicle, as proposed by Kyan :3
Here's some info on it! :D
Also, the first world they go into is represented in the new background! It's called Mirroei. There are two sides to this world.
One side is called "Origin". It has the actual inhabitants of the planet on it, and it where our characters will arrive on. Mirroei's inhabitants are just like humans, except they are far behind us in some ways with technology and the like. They don't have cars, they walk places or ride horse-like animals. No phones that you can talk into, but things like cell phones that only have an application like Chatsicle on them to talk to others over long distances. They have farms and stuff like that though. Their houses look sort of futuristic, made up of a shiny white material and lots of glass. Their light comes from glowing crystals that come in many different powers (dim, medium strong, ect.) and are mostly shades of blue. The inhabitants themselves wear sort of old fashioned clothing, fancy dresses and suits. They eat similar food, except the animals. The animals on Mirroei are very different from Earthen ones. There are no pets, only the horse-like beings which the inhabitants keep to travel long distances on.
The other side of Mirroei is called "Daem". It is mirrored in any surface you can see a reflection in, such as a window, calm water, or even the side of one of their houses. This side of the world is the opposite of "Origin" in most ways. It has demons in replace of each inhabitant(so when our characters come in, demons for them will appear as well). Some of the demons reflect their counterpart's worst fears, or what they feel on the inside, much like the Picture of Dorian Gray, so that if an Origin person is consumed with jealousy and/or lust, their demon will show that grotesquely, being malformed and horrid looking. Daem also reflects the impurities of Origin, and amplifies them. So any bit of mistreatment or any malfunction will be worse in Daem.
So basically Daem is rather disgusting and dangerous, and has lots of fights breaking out all the time. I imagine it looking rather dark all the time with not many plants and poorly tended houses, fields and roads, and a lot of demons sprawled out on the ground all over the place when they aren't engaged in a fight.
And- if a demon dies in Daem for whatever reason, it's corresponding person in Origin will die as well, even if they aren't doing anything at that moment, and vice versa.
A few examples of said demons:
There is also a way to get into Daem from Origin and a way to get into Origin from Daem, but not many know of these ways. ;)
Hope that wasn't too boring or lengthy....I got kind of carried away >.>;;