"Attention! Attention! This is the Nine Realms Sanctum Sanctorum Cosmic Broadcast channel, bringing you an emergency bulletin!"
"Dear members, what you are about to hear is a real-time battle report brought to you by the Nine Realms Sanctum Sanctorum. It has been reported that three cosmic hours ago, unrest broke out in the Death Realm within the Nine Realms. Hela, Lord of the Underworld, left her territory and launched a war against another mysterious being located at the core of the World Tree..."
"At present, death and Life Force have spread beyond the Nine Realms. The affected areas include six subsidiary dimensions from R23 to R29. Later, we will broadcast the names of the affected areas in an informational format understandable to cosmic lifeforms..."
The so-called subsidiary dimensions from R23 to R29 were names assigned by the Sanctum Sanctorum after it reordered the dimensions surrounding the Nine Realms.
Generally speaking, the dimensions within the Nine Realms were named according to Asgardian convention. However, the Asgardians rarely made a dedicated effort to organize information on these dimensions and domains. Their understanding of nearby dimensions was passed down by word of mouth and lacked any system.
But after the Sanctum Sanctorum began operating, the inconsistent naming and classification of dimensional domains created major problems. Thus, the mages of Kamar-Taj recently traveled through every dimension around the Nine Realms, assigning them all numbers and compiling a map.
Of course, since they were dimensional domains, they did not exist in three-dimensional space. The map had to be encoded before a three-dimensional species like humanity could understand it. So far, most of those responsible for the Cosmic Broadcast were mages from Kamar-Taj.
The R23 to R29 dimensions mentioned in the broadcast were two fragmented dimensional regions closest to the Death Realm. No one lived there.