Effort

'A star map…?'

Ryu's gaze flickered several times. One of the last things he expected to see when he looked into this technique was such a thing.

Star maps were usually only useful for those like Ryu who were traveling from lower level worlds. There were also some rare instances where geniuses of the True Martial World might travel out to meet rare phenomena where they might be useful, and potentially on the surface of other Planes as well. But all in all, at least in the True Martial World, they weren't all that common. A normal map was far more useful.

Ryu's brow raised as he thought of another instance. Didn't the Radiant Star Sect also have such a thing? It was useful for keeping tabs on the constellations they thought were worthy of resonating with, as well as what their strengths and grades were.