Realm

A realm is a domain or location and OseanWorld contains many different kinds, such as higher and lower realms. They can be accessed via portals and some, like Yameii, have the ability to travel between realms.

OseanWorld
The primary setting of the series than contains all realms aside from the Physical World, and where anything is possible.

Cyberspace
Cyberspace is a realm where you can anything. It's also one of the only realms that bridges OseanWorld and the physical world. This realm can be viewed in the OseanWorld Website's "about" section.

Deadric City
Deadric City, contrary to it's appearance and reputation, is actually not a realm, but a mind maze created by the Digi, also referred to as Cyberspace wizards or tech wizards, to make people go insane. The only way out is by breaking the simulation within your mind, like Labaeyga and Yameii. It was also described as a digital world within Cyberspace by Choice.

Endless Realm
The Endless Realm (or just the Endless) is a place in OseanWorld that never ends. It's a realm where humans constantly fill it with new ideas and these ideas create more ideas.

Galaxy 777
Galaxy 777 is Moonkid's realm and Labaeyga visited one of its moons.

Hyperrealm
Hyperrealm (or Hyper Realm) is a lower realm that contains a lot of racing, such as the Hyper Race. Is also has Altiria Z, the media capital of the lower realms.

Null
The Null is a realm where Space God resides.

Physical World
The Physical World is the Real World inhabited by Osean, Deko, and you.

Void
The Void is a mysterious, chaotic realm related to Choice and the Shadow Kids. Space God threatened send Yameii there when she was killed in Deadric City.