The story takes place 1, 000 years after the death of all of the Z fighters. Come and create your own fighter and became a Z fighter or try and take over the universe.
This is the the legendary company of capsule corp. they have taken over almost all of the scientist division of the market. They can rent out gravity chambers for your training.
This is the varius other planets that are in dragon ball/z/gt. Some of them will be made later on if enough people want to join/come to that planet. Until then any missions envolving taking over planets and such will be taken place here on a random planet with a random name.