Who said that Recca didn't intervene in the Uchiha's case? He did. His motives were hardly altruistic, mind, but he did intervene.
It just didn't make a difference.
Recca and Sasuke have a conversation about that aspect of things later on (Chapter 2 is at 131 KB at the moment).
As for the Immortal Sage and the Divine Emperor, they're major historical figures from the Age of Overworlders. They're not crossover characters, but they will be important later. As a reader, you're not supposed to know much about them at this point.-- This message brought to you by Ely Lilly, makers of SeraFem: Happy Pills for PMS.
It just didn't make a difference.
Recca and Sasuke have a conversation about that aspect of things later on (Chapter 2 is at 131 KB at the moment).
As for the Immortal Sage and the Divine Emperor, they're major historical figures from the Age of Overworlders. They're not crossover characters, but they will be important later. As a reader, you're not supposed to know much about them at this point.-- This message brought to you by Ely Lilly, makers of SeraFem: Happy Pills for PMS.